Ass Ballz Large are a backdoor favorite. The heavy ballz are 100% Medical Grade, high end silicone with no filler. The seamless, matte surface has a soft touch silicone finish. Each of the 4 insertion balls are 2 (5cm) with 2 (5cm) length of durable silicone between each. Ass Ballz are extremely pliable and have a ringed handle for a secure grip and easy manipulation. Length 18 (46cm) Ball Width 2 (5cm) 100% Medical Grade Silicone Soft Touch Silicone Extremely Durable This product is completely hypoallergenic, non-irritating and compatible with sensitive skin. Care Instructions: This product is safe with all lubricants.