CAPACITY: Each ramp can hold up to 3,300 lbs. 2 pieces can hold up to 6,600 lbs. Modular Levelers RV Leveling Blocks Ramp Stabilizing W/ Storage Case Camper 10pc. LOW INCLINATION: With a 9.05° loading angle for an easy low slope incline, Super Slopes are perfect for low profile car that works well to save the front lip of your car.