Upgraded Rubber Threshold Ramp, 7.6 cm Rise Door Ramp with 1 Channel, Natural Rubber Car Ramp with Non-Slip Textured Surface, 150 tons Load Capacity Curb Ramp for Wheelchair and ScooterUpgraded Rubber Threshold Ramp, 7. 6 cm Rise Door Ramp with 1 Channel, Natural Rubber Car Ramp with Non Slip Textured Surface, 150 tons Load Capacity Curb Ramp for Wheelchair and Scooter Product Features Smooth Transition & 1 Channel Design Our 3" rise ramp with channel design creates a smooth transition over any door, entryway, or uneven threshold surface. The reserved channel underneath allows cables to pass through without getting crushed or