The Doorline-multi 70cm Portable Ramp is a lightweight, hardwearing, anti-slip wheelchair & scooter ramp for doorways & PVC thresholds. Best Quality, Prices & Fast Delivery. An original, branded, finest top quality, compact, aluminium, lightweight & durable wheelchair & mobility scooter ramp wth added grip. Perfect for indoors, outdoors, doorways, doors, stairs, steps & thresholds.