This slick, temperature-sensitive set lets you work your way up with graduated sizes. Each plug features a tapered tip for easy insertion and a flared base that will help keep it in place. The non-porous material is hypoallergenic and safe for those with sensitivities. Phthalate-free and easily sterilized, it is compatible with all lubes and will not harbour bacteria. Heat it up or cool it off with a quick dip in hot or cold water. Treat yourself to erotic bliss with Dosha. Measurements. Small 4.5 inches in total length, 4 insertable, 1.15 inches in diameter. Medium 4.75 inches in total length, 4.5 insertable, 1.35 inches in diameter. Large 5.75 inches in total length, 5 insertable, 1.55 inches in diameter.