Premium Material: The 420D nylon material is wrapped with a durable TPU composite fabric for enhanced abrasion resistance. The wedge-shaped bladder pump features a reinforced edge and smooth finish, allowing it to easily fit into tight spaces. Easy to Use: This air pump pad bag supports full-size installations with just one user. Equipped with a simple pressure pump and precise bleed valve, it enables smooth raising and lowering for accurate alignment. Ideal for positioning, adjusting, maintaining, lifting, and installing. Strong Lifting Capacity: The hand pump lifts up to 400 lbs and extends from 3/32 to 2 inches. It supports a load capacity of 150-200 kg with an adjustable range of 2-80 mm. Helps save time and effort. (Note: Do not over-inflate to prevent damage to the bag or valve.) Convenient and Environmentally Friendly: Made with eco-friendly materials that are safe and non-polluting. The air pump wedge surface is constructed with TPU rubber, which protects doors and windows from damage, ensuring a clean and secure installation. Wide Applications: Suitable for various tasks including precise alignment and leveling. Can be used on beams, cabinets, doors, appliances, furniture, HVAC systems, plumbing, joists, countertops, mantels, bathroom fixtures, curtain wall flanges, windows, and more. Number of Pieces Included: 1 Color: Black Size: 15.5 x 16 cm