Feature: 1. This tip‑shaped cushion has partial pressure shock absorption, a narrowed front end, an enlarged area on both sides, no friction on the inner thighs, air convection air sacs, partial pressure damping. 2. Universal decompression air cushion cover for bicycles/mountain bikes, specially designed for painless riding. Riding non‑slip and no displacement, large‑area non‑slip glue dot design on the back, denser and more non‑slip. 3. Ergonomic design, in line with human body standards, streamlined shape, comfortable riding, not tired after sitting for a long time. The decompression cushion adopts the air sac design, and the air convection cycle is forced and not easy to collapse. 4. Comfortable and breathable polyurethane fiber, air convection circulation massage, ergonomic partial pressure technology design, the air circulation between the air sac produces an anti‑gravity effect and disperses 80% of the pressure on the buttocks. 5. Cushioning, shock absorption, protection of the tail spine, refusal of the awkwardness of the buttocks sticking to the cushion cover 360 degrees without dead ends, and still comfortable for a long ride. Specification: Item Type: Bicycle Seat Cover Material: TPU + Polyurethane Fiber Product Color: Blue Product Size: Approx. 27.5x21.5 cm/10.8x8.5 inAir Sac Thickness: Approx. 3 cm/1.2 in Product Weight: Approx. 157gMaximum bearing capacity: Approx. 130 kg/286.6 lbInstallation steps: 1. Cover the entire saddle and fix it in front, back, right and left; 2. Tighten the telescopic belt to a suitable position.Inflation method: 1. Insert the inflation needle into the cushion inflation hole; 2. Continuously squeeze the inflatable ball to inflate; 3. If there is too much inflation, press and hold the deflate button to deflate properly.. Package List: 1 x Bicycle Seat Cover 1 x Manual Inflatable Equipment1 x Manual