: Glass is hypoallergenic and completely smooth. Like metal, it is non-porous and allows for temperature-based stimulation. 2. Safety Features and Sizing

: Discuss the necessity of high-quality, water-based or silicone-based lubricants (ensuring compatibility with the toy material). 3. Psychological and Social Impact Gender Affirmation

: Since the anus does not produce natural lubrication, using a generous amount of lubricant is necessary. Water-based lubricants are generally the safest choice for all toy materials.