It is made of special blend of silicone and Thermoplastic Rubber TPR called PF Blend. Its insertable length is 2.5 inches and has a circumference of 6.3 inches. It is safe with all lubes. Wash thoroughly with mild soap and water. Perfect Fit Brand Products are sold, and intended for use strictly as adult novelty toys for entertainment. They are not intended for medical use and have not been clinically tested. No medical claims are warranted or implied by the use of these products. This product is not compatible with latex products.