The toys are made of F-borosilicate glass is one of the safest materials aka body safe. Extremely resistant to breaking, dishwasher safe and compatible with any lubricant. You can freeze or boil the toy to then use in temperature play! Non-porous, hypoallergenic, phthalate & latex free. These toys are hand-made, so they may have very slightly different dimensions. They all Anal probe / G-spot wand, Compatible with ALL lubricants.