Anal Speculum & Spreaders – for Medical Play and Controlled Dilation
A speculum is, at its core, a medical instrument designed to examine body openings. Rectal specula have found a very different second career in the BDSM and fisting community: they dilate the sphincter in a controlled way, hold it open, and give a level of access and visibility that fingers or plugs simply cannot deliver. At Tom Rocket's you'll find specula in medical-grade stainless steel across a range of sizes and designs – from the beginner-friendly Matthieu to the Giant Horse Speculum for seasoned players.
More Anal Tools
Table of Contents
What Is an Anal Speculum?
An anal speculum (also called a rectal speculum) is inserted with plenty of lube and then opened to dilate the sphincter. Once spread, it creates an opening that keeps the anus visible and accessible – classically used for medical examinations, and in a kink context for medical play, BDSM sessions, and prep work before fisting.
The difference between a speculum and an anal spreader is subtle and often blurred. A spreader typically locks the dilated anus open without the full tube-like structure of a speculum. In practice, both terms are used interchangeably. What you'll find at Tom Rocket's are models that keep the anus open – classic specula with two or three prongs.
Specula at Tom Rocket's – the Models at a Glance
Every speculum in the range is made from rustproof medical-grade stainless steel. Easy to clean, sterilisable, and built to last.
The Matthieu Anal Speculum is the entry-level pick: 8.3 cm insertable length, 2 cm diameter when closed, up to 6.3 cm maximum spread. Three prongs distribute the stretch evenly, and a stepless screw lock holds the opening exactly where you set it. Compact, precise, and the ideal introduction to medical play.
The 3 Prong Anal Speculum works on the same principle but scales up: 11 cm insertable length, 3.8 cm closed diameter, up to 6.3 cm spread. Also three prongs with stepless locking – the logical next step once the Matthieu starts to feel familiar.
The Collins Speculum is a classic straight out of clinical practice: 10 cm insertable length, 2 cm closed diameter, lockable, and 225 g of solid stainless steel. The two-arm design with handle gives the top full manual control over how wide things go.
The Giant Horse Anal Speculum is for advanced players and isn't shy about it: 43 cm total length, up to approximately 10 cm maximum spread, locked in place with a wing screw. The open channel lets you pass dildos, fingers, or other toys straight through. Medical steel, rustproof, and built to handle serious use.
For Bottom and Top
A speculum works on both sides of the equation. As a bottom you feel the controlled stretch, the sensation of being opened up, and the surrender of control to your top. As a top you run the scene: you decide the pace, how wide the spread goes, and what comes next. The lock holds the position without any ongoing effort on your part – hands free for everything else.
In a BDSM context, a speculum amplifies the power dynamic in the most literal possible sense. The bottom opens up to the top, fully and visibly. In medical play that translates into a clinic scenario that hits differently from any other kink setup: one person is the patient, one plays the doctor, the roles are clearly defined, and the instrument makes the whole thing feel unmistakably real.
Medical Play & BDSM
Specula come from medicine, and that origin is exactly what makes them so effective as BDSM toys. The cool steel, the click of the lock, the controlled spread – all of it reads as clinical examination and creates an atmosphere that ordinary toys cannot touch.
Pair a speculum with latex gloves, a white coat, and a clean play surface and you have a medical play setup that will raise both partners' pulse. Even without the full clinical staging, a speculum adds a dimension to any BDSM session that you won't get from plugs or dildos alone.
Which Speculum for Beginners?
If you haven't used a speculum before, start with the Matthieu Anal Speculum. The small closed diameter (2 cm) makes insertion straightforward, and the stepless lock means you can open it gradually, one small turn at a time. Three prongs distribute the pressure evenly – noticeably more comfortable than a two-arm model on your first attempts.
A few ground rules to keep in mind:
- Use plenty of lube – water-based lube is fully compatible with stainless steel
- Open slowly, one step at a time
- Communicate: agree on a safeword before you start, especially for more intense play
- Never push through pain – your body sets the limits
Care & Hygiene
All specula at Tom Rocket's are made from rustproof stainless steel, which makes cleaning straightforward. After use, rinse with warm water and soap, or disinfect with a toy cleaner. Stainless steel can also be boiled or sterilised with disinfectant – an advantage over silicone or plastic toys that simply cannot handle that treatment.
Before each use, check for damage: cracks, sharp edges, or loose screws can cause injury. In good condition, a stainless steel speculum will last indefinitely.
Prep: Anal Douche Before Play
Before using a speculum, a thorough clean-out with an anal douche is strongly recommended. Tom Rocket's stocks a range of options in the same category: the Rocket Shot Anal Douche in premium silicone (290 ml) for a flexible, body-safe clean, the COLT Master Cleanser as a syringe-style system (100 ml) for targeted rinsing, or the 2-in-1 Showerhead with integrated anal attachment for a permanent fixture in your shower setup.
Shipping & Orders
Tom Rocket's ships discreetly in plain, neutral packaging – no indication of the contents on the outside. Orders placed on business days before 1 PM CET go out the same day. We ship worldwide from Germany. Specula and anal douches combine freely with lube, gloves, and anything else in the shop. If you have questions, the team is reachable by email, WhatsApp, or the chat widget on site.
Frequently Asked Questions
Which speculum is best for beginners?
The Matthieu Anal Speculum with 8.3 cm insertable length and 2 cm closed diameter. Three prongs and stepless locking allow for careful, fully controlled dilation – the most forgiving option in the range.
What material are the specula made from?
All specula at Tom Rocket's are made from rustproof medical-grade stainless steel. They are sterilisable, extremely durable, and easy to clean after every session.
Do I need special lube for a speculum?
No. Water-based lube is fully compatible with stainless steel and works perfectly. Silicone-based lube also works fine. Only avoid oil-based products if you're using condoms at the same time.
Can a beginner use the Giant Horse Anal Speculum?
The Giant Horse Anal Speculum is designed for experienced players – 43 cm total length and up to approximately 10 cm maximum spread are not a starting point. Begin with the Matthieu or Collins Speculum and work your way up gradually.