A rock hard cock deserves a rock hard ring. Adorn your cock right with this hand-blown clear glass cock ring. The most effective cock ring on the market for keeping your cock rock hard longer. Nubbed design to ease in removal. Use with lubricant. 40mm inner diameter. Category: Falcon, Glass Cockrings, Men, Cock Rings, Glass, Phthalate Free. Cock ring measures 2.5 inches long by 2.5 inches wide. Package Dimensions: Height 7 inches, Width 5 inches, Depth .75 inch. Packaged Weight .90 ounces. Falcon Glass Cock Ring 40mm Clear from Icon Brands.