【DURABLE MATERIAL】The air wedge pump is made of polyurethane rubber, which is durable enough to be used over and over again without scratching and leaving no marks. 【HIGH RESISTANCE】 The powerful handheld air wedge pump lifts up to 297 lbs. Carry spaces from 3/32 to 2 inches folded and not under pressure. 【IMPROVEMENT】 Replaces wooden washers and metal shears and poses no risk of damaging surrounding surfaces. 【EASY TO USE】 There is a round hole in the upper right corner of the bag that you can hang around your waist, allowing you to safely complete large installations with only one installer, saving time and labor costs. 【VERSATILE】Suitable for window and door fitters, interior fitters, appliance and small appliance installers and other skilled tradesmen, e.g. for appliances, beams, cabinets, doors, household appliances, furniture, air conditioning systems, plumbing, wooden beams and more.