Suitable for Hiboy S2, S2 PRO, KS4, KS4 PRO, MAX PRO, S2 Nova and S2 SE . Enhance sturdy aluminum rod for solid stability and durability. Retractable and adjustable height (20. 9 - 30. 7 inch) to fit for different shapes of people. Leather saddle cushion provides a comfortable seat and easy for daily care and maintenance. What you get: One seat attachment (NOT including E-Scooter) Please note this product can't be returned.