Keep your RV or camper rock-solid and level with these heavy-duty Chievbit stabilizer jacks! Built from tough, rust-resistant steel with an electrophoresis finish, they're made to withstand the elements and heavy loads – each pair can support up to 9000 lbs. They have a wide lifting range: retract down to just 4 inches and extend up to 24 inches, so they work great on uneven ground for all sorts of RVs, travel trailers, campers, and pop-ups. You can operate them two ways: use the included hand crank for manual control, or attach a power drill (not included) to the provided adapter for quick, effortless lifting and lowering. The smooth-tooth gear system ensures straight, stable extension, and the wide bow-tie base adds extra stability on various surfaces. The kit comes with everything you need: 2 scissor jacks, 1 hand crank, and 1 drill adapter. Setting up camp has never been easier or more secure. Say goodbye to wobbles and shakes – these jacks give you peace of mind so you can relax and enjoy your outdoor adventure. Durable, versatile, and super practical for any RV owner!