Features 1. Our protective sleeves are made of high-quality silicone, which is skin-friendly and safe to use. 2. Special rings on the coronary sulcus help reduce slippage during use. 3. The sleeves are produced in a controlled vacuum chamber that removes air bubbles, enhancing durability and longevity. 4. This soft and stretchy sleeve fits most sizes and is designed to add comfort and create a secure seal. 5. It may assist in maintaining an erection, supporting performance during use. Specification Material: Silicone Color: Transparent Package Size: 6 x 2 x 2 cm, 8 x 2 x 2 cm, 10 x 2 x 2 cm Weight: 20 g, 30 g, 40 g, 35 g Package Includes: 2 Silicone Sleeves Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight variation; please ensure this is acceptable before ordering. 2. Due to differences in lighting and monitor settings, the actual color may vary slightly from the images; please confirm this is acceptable before placing your order.