Dog Knot Dildo Extender Sleeve Function: Silicone Penis Extension Color: Blue Size: 20.5 * 4.8 cm/8.0  * 1.8 inch Insert Length: 16 cm/6.3 inch Net Weight: 311 g/0.68 lb/10.9 oz Power: No Material: Silicone Package: OPP Bag Further: Waterproof