This glass butt plug is perfect for men and women who are looking for a good anal toy. The plug is made of glass and is medium-sized with a diameter of 3.9 cm. The glass is smooth and safe for use with any type of anal lubricant. After use, the butt plug can easily be cleaned with water and toy cleaner. You can also warm up or cool down the glass by putting the plug in warm or cold water for a few minutes or holding it under the tap.