Are you looking for a threshold ramp? This plastic ramp is designed to make it easier for the robot to sweep up the stairs. It is lightweight, easy to carry, and non-slip. Portable size, easy to use, suitable for indoor stairs or steps at the gate, practical and convenient. Groove treatment, non-slip effect is good, it can also be used in the toilet. Features - Color: Black - Material: Plastic - Size: 17.10X5.10X1.30cm/6.72X2.00X0.51in - Suitable for various thresholds, door frames and small thresholds, facilitating the passage of the robot vacuum cleaner. - Simple color design, this robot vacuum cleaner ramp is stylish and beautiful, complementing the home decor. - Made of plastic material, durable and easy to clean, not easy to slip, ensuring the robot's safe passage. - Easy to install, no tools required, simple DIY. Provides you more convenience to use in your daily life. - After groove treatment, the pressure resistance and non-slip effect are good, and the bathroom can also be used. Package list 2 x plastic ramp plate