Description Each ramp has a special textured surface to increase friction and prevent slippage. The sturdy base structure makes our ramp more stable and not easy to move during use. Designed to allow the sweeping robot,skateboarding, wheelchair and more to travel safely on uneven ground or doorway. Features - Color: Grey -Material:Plastic - Size: 17.10X5.10X1.30cm/6.72X2.00X0.51in - Compact and lightweight: Easy to carry and store. User-friendly: Simple operation, suitable for many places. - Delicate workmanship and creative appearance ensure thisthresholdpad'spopularity and practicality. - Made of practical material, strong and durable, not easy to wear and deform, can be longtime used. - Designed for easy passage of robot vacuum cleaners over door step, smallthresholdstep, give you convenience. - Widely used in your daily life: Suitable for toy car, sweeping robot, suitcase,skateboarding, wheelchair, etc. Package list: 2 x Ramps