Glas Double Trouble Glass Dildo Clear OS GLAS-16. Being able to share toys with your sex partner can be an extremely fulfilling experience. This artistically crafted, ribbed, double-headed dildo enables deep, pleasurable penetration and stimulation for everyone involved. Fracture-resistant and hypoallergenic, this toy can be easily cleaned. Retains heat and cold for increased stimulation. Compatible with all lubricants.