The Pet Gear Bi-Fold Pet Ramp allows your dog easy access into your vehicle or other hard to reach places. The tread is skid-resistant even when wet to keep your pet steady. The bottom of the ramp has rubber grippers to maintain its position. The Bi-Fold design reduces storage space and has a carry handle for easy transportation. Capacity 150 lbs 66"L x 16"W x 4"H