Blown Collection of artist designed and hand crafted borosilicate glass toys are non-porous, easy to clean, compatible with all lubricants and can be heated or chilled as desired. Double Ended Dong with Twist Clear is made using phthalate free, non-toxic materials glass. Double dong comes with AC/DC ends. One end is phallic and penis shaped and the other end comes with tickler, twist. Not harness compatible. Each glass sex toy comes packaged in a sturdy and stylish box that can be displayed on a shelf or hung from its reinforced hang tab. Beautiful form and thoughtful functionality combine to create a uniquely elegant adult product. Blown by Spartacus line of high quality artist made borosilicate tempered glass tolerant of extreme hot, cold and pressure. Safe, hygienic and compatible with all types of lubricants. Non-vibrating anal sex toys. Always clean before and after use plus between partners. 8.5 inches (21.6cm) Glass Double Ended Twist Clear. Blown is a registered trademark for Spartacus Leathers.