Camper Leveler RV Leveler Block Ramp Kit 2 Levelers Blocks Skid Pads & Carry Bag. CAPACITY: Each ramp can hold up to 3,300 lbs. 2 pieces can hold up to 6,600 lbs. LOW INCLINATION: With a 9.05° loading angle for an easy low slope incline, TR Super Slopes are perfect for low profile car that works well to save the front lip of your car.