MaxxHaul 50708 Interlocking Step Curb Ramp is made for wheelchairs, scooters, dollies, and bike mobility. Unique 3-section design for easy installation and flexible arrangement depending on your threshold height needs. The modular feature allows you to connect the ramp width-wise and also height-wise depending on the height of your threshold. The set includes 3 pieces with 1”, 2”, and 3” height, and each piece can be disconnected to attain your desired threshold height. Designed with a 9-degree slope in incline coupled with a honeycomb pattern to offer maximum traction. Constructed from industrial grade PP durable material and yet light in weight for maximum probability and compact storage. Size(L*W*H): 18.” x 16” x 3”; Weight (lbs): 4lbs; Maximum Weight Capacity: 1000 lbs