Features:1. 100kg strong load bearing capacity, more stable and reliable for your ride. 2. The saddle is made of high-quality elastic foam sponge, which is soft, elastic, breathable and comfortable to use. 3. Adjustable height, can fit for different people's needs. 4. No require of drilling, convenient to assemble and disassemble. 5. Suitable for Nineboot KickScooter ES1 ES2 ES3 ES4. Specification:Condition:100% Brand NewMaterial: Steel + aluminum alloyColor: As Pictures ShownSize: Approx.Adjustable height: 51-63cmMaximum load: 100 kgBuffer material: high elastic sponge/vacuum plasticWeight: Approx.2736g Package list: 1 x Electric Scooter Seat1 x Wrench 4 x Screws4 x Gaskets4 x Spring Gaskets1 x Hex wrench1 x Turner1 x Tube1 x Base2 x Top Cover of Folding Boxes How to install?1. Place the base, open the tube of the collapsible base, lock the collapsible box and release it quickly (press and hold the collapsible lock column, loosen the upper cover of the collapsible box and release it, and then lock the quick release), and put the base on the back of the pedal of the scooter.2. Locking screw, first, place two plastic locking blocks between the bottom plate and the scooter body, insert screws into the mounting holes one by one, and pretighten. Each screw is pretightened 8 times to hold the plastic lock block. Then tighten the screws one by one until they lock.3. Install shock tube and cushion kit: open and release the quick release kit, insert shock tube and cushion kit and adjust to the appropriate height, lock the quick release kit. Adjust the height without exposing the safety cut line on the shock absorber.4. Adjust cushion: adjust the cushion to use state and tighten. If necess