This 8-piece leveling kit includes 6 cylindrical RV jack blocks and 2 square RV leveling pads. Each camper leveling block supports up to 8 inches in height and 2,000 lbs. Stackable, durable, and designed for Class A & C RVs, trailers, and more. Boost grip, stay steady—no matter the ground! | Vevor | | Trailer Jack Blocks, 8" High, 2000 lbs Capacity, 8 Pcs Heavy Duty Camper Leveler Kit | 6 RV Leveling Blocks & 2 Pads | Black;Orange | Best Buy