The ribbed version of Rock Solid's classic Donut shape gives extra texture to rock-hard erections. Phthalate-free, body-safe silicone provides the right amount of stretch for maximum comfort and ease of wear. Product Dimensions: Width/Diameter: 2.25" Unstretched Inner Diameter: 1.1" Depth: 0.6" Soft and Stretchable Delays Ejaculation and Prolongs Erection Enhances Size and Thickness Hypoallergenic, Nonporous, and Odorless Phthalate-Free, Body-Safe