Enjoy super stretchy erection enhancement with the strength of lab tested True Silicone! Screaming O RingO Pro XXL features a seamless stretch to fit design with a wide flat band that stays firm and secure for a longer-lasting experience. Made of 100% body safe silicone with softer flexibility, RingO Pro XXL measures a 2.25 inches  diameter for a more comfortable feel. Features: 100% True Silicone penis ring stretches to 2.25 inches. Seamless stretch to fit design. Wide flat band for firm, stay-put fit. Additional Information: Latex and phthalate free, Water Proof, Wireless, Reusable.