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×I designed our glass anal dilator kit with a true working understanding of how the three sets of sphincter muscles and overlying skin work, and where they are anatomically positioned, even accounting for variations of length in different bodies.
Dr. Evan Goldstein Learn More
How it works
This 4-piece glass system is designed to relax and strengthen the anal sphincter muscles, enhance skin elasticity, and support comfort, control, and gradual progression at every stage:
Benefits
Our anal dilators are crafted from borosilicate, a shatterproof glass known for its durability and body-safe properties. Choosing glass offers several unique advantages for your training:
Materials & Dimensions
Materials:
Dilators made from body-safe, shatterproof, non-porous Borosilicate glass. Hypoallergenic and phthalate-free.
Measurements & Sizing Guide:
Level 1
Total length: 4.8” (12.2 cm)
Insertable length: 4.3” (10.8 cm)
Diameter: 0.9” (2.2 cm)
Fit: Ideal for beginners or those who experience tightness. Its size is a comfortable starting point to prime the muscles.
Level 2
Total length: 5.5” (14 cm)
Insertable length: 4.9” (12.5 cm)
Diameter: 1.1” (2.8 cm)
Fit: A natural step up once Level 1 feels completely effortless. This size begins to gently stretch the sphincter while remaining manageable.
Level 3
Total length: 5.8” (14.8 cm)
Insertable length: 5.2” (13.1 cm)
Diameter: 1.3” (3.2 cm)
Fit: Designed for intermediate users. This size provides a more substantial stretch, helping you train for deeper relaxation and comfortably prepare for partner play or larger toys.
Level 4
Total length: 6.1” (15.6 cm)
Insertable length: 5.4” (13.8 cm)
Diameter: 1.4” (3.6 cm)
Fit: The final stage in this set. It offers a fuller stretch and prepares the body for average anatomical sizes or larger toys. Move to this level only when Level 3 goes in without resistance.
Not sure which training kit fits your stage? All three use the same body-safe, doctor-developed approach to gradual dilation. The difference comes down to material, pressure, and where you are in your training. See how the glass anal dilator set compares to our silicone options to find your perfect fit.
4-Piece Glass
4-Piece Silicone
2-Piece Silicone
Best For
Dr. Evan's complete training protocol with advanced precision
Dr. Evan's complete training protocol
Exploring anal play for the first time
Sizes Included
4
4
2
Material Feel
Firm, smooth, precise
Soft, flexible, forgiving
Soft, flexible, forgiving
Pressure
Targeted
Gentle
Gentle
Lube Compatibility
All lubes
Water & hybrid
Water & hybrid
Temperature Play
Yes
No
No
Experience
Premium experience
Complete system
Simple introduction
Prefer a softer, more forgiving feel? Shop the Silicone Anal Dilator Set.
Anal Douche Powder Packs $34.99
Portable anal douche powder pack for discreet pre- or post-sex cleansing—just add water.
Butt + Gut Daily Fiber $29.99
The hole-istic treat that simplifies your pre-play routine.
"The size progression is perfect, and the shape actually is better than a traditional dildo."
Yes, when used correctly and with proper hygiene, glass anal dilators are safe to use. Their non-porous, smooth surface minimizes the risk of irritation and makes them easy to clean. When cared for properly, they are shatterproof, and won't break or crack. Before each use, always check for any chips, fractures, or other imperfections.
Thoroughly sanitize anal dilators before and after each use. To clean, rinse product with water or wipe with a damp paper towel or washcloth to remove any surface debris. Apply mild liquid soap and scrub well before rinsing with warm water. Once completely clean, place on a sterile towel and air-dry completely before storing.
This is a personal choice as glass is compatible with all types of anal-safe lubricants. However, we recommend finding a silicone-based lube and applying copious amounts to both the glass dilator and anus. Reapply as needed throughout your training session.
We don’t recommend leaving in an anal dilator (or butt plug for that matter) for any extended period of time. Constant movement is key to optimal dilation exercises. Ideally, don’t leave the dilators from your anal training kit in more than 30 seconds per exercise.
Yes. Borosilicate glass retains heat and cold well, making it perfect for temperature play. To safely use your set for this:
Always test the dilator against the inside of your wrist before use. If it is uncomfortable on your wrist, it is too extreme for internal use.
Given the intimate nature of our products, we cannot accept returns.
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