As per client demands we provide customization on these products at an admissible price. Specifications RR-501 90/3 Leather top with triple coil spring (Standard) RR-502 Scooter type. PVC top with two tension spring. RR-503 French model vinyl top single coil spring. RR-504 MTB vinyl Top with double action coil spring (Ranger) RR-505 Plastic base. PVC foam double action coil spring