Glass Plug — Get Closer Glossary

Type of

Used in

WHY PEOPLE USE IT

The defining appeal of glass is temperature play. Glass holds heat and cold exceptionally well and transfers it directly to the body. Warming a glass plug in hot water before use relaxes the muscles and heightens sensitivity. Chilling it in the refrigerator creates a sharp, contrasting sensation. The temperature shift changes the quality of stimulation significantly and is difficult to replicate with other materials. Beyond temperature play, glass is chosen for its weight, its firm pressure, its smooth surface, and its ease of care. It is also visually striking, and many glass plugs are handcrafted with colour, patterns, or decorative elements.

HISTORY

See: Butt Plug

WHAT TO LOOK FOR

Only buy borosilicate glass. Regular glass is not thermal-shock resistant and can crack under temperature changes. Borosilicate glass is the standard for sex toys and is clearly labelled as such by reputable manufacturers. Avoid anything described only as 'glass' without specifying the type. The flared base must be large enough to sit securely against the body.

TRUSTED BRANDS

Icicles is the most widely available dedicated glass plug range. njoy makes high-quality borosilicate glass and stainless steel options. Many independent glassblowers produce handcrafted glass plugs sold through specialist retailers, often with more variety in shape and colour than mainstream lines.

WHERE TO BUY IT

Show prices in

Available from specialist sex toy retailers online and in store. Handcrafted options are available through boutique adult retailers and independent makers.

Standard: $30–$60. Machine-made borosilicate, clear or simple colour.
Artisan/handblown: $60–$120+. Swirled colours, custom shapes, made-to-order options.

Rough prices as of June 2026.

HOW TO LOOK AFTER IT

Cleaning
Clean with warm water and unscented soap after every use. Non-motorised glass plugs can be fully sterilised by boiling or running through the dishwasher (top rack, no detergent).

Lubricant
Glass is compatible with any lubricant type, including silicone-based.

Inspection
Inspect for chips or cracks before each use and discard if damaged.

Storage
Store separately in a soft pouch to prevent scratching.