Material: Plastic, non- skid material. Ideal for small to medium sized dogs. For indoor and outdoor use with non slip coating and side safety rails. Recommended for pets with joint damage or Arthritis. Non-slip rubber feet to keep ramp in place. Suitable for pets weighing up to 150 pounds. Dimensions: Overall Height - Top to Bottom: 4". Overall Width - Side to Side: 15" Overall Depth - Front to Back: 40" Overall Product Weight: 7.6 lbs Color: Black Material: Plastic 40" L x 15" W