Advanced Silicone Pump Sleeve Blue. Heavy duty, high quality, Silicone pump sleeves make a great addition to any penis pump. Sleeve fits up to 3 inches diameter pump cylinder. Penis pumps sold separately. Safe and pure for body and pleasure. Made using phthalate free, non-toxic materials Silicone. Sleeve measures 3 inches long by 1.25 inches wide. Bulk weight 1.3 ounces. Always clean before and after use plus between partners. Category: For Men, Pumps, Non-Vibrating, Vibrating. Advanced Silicone Pump Sleeve is a registered trademark for California Exotic Novelties. Sex toys and sexual wellness. 16.