Use hydraulic cylinders to open and hold the lid securely in place. Some items require two hands to store, making it difficult when one hand must hold the door. These cylinders allow you to easily lift and hold the lid with one hand while storing or retrieving items from the cabinet. Ideal for large toy boxes, they prevent the lid from closing unexpectedly and protect against pinched hands. The soft-close mechanism works effectively due to the strong connection between the arms, slowing the descent to avoid slamming and ensuring children's safety. Each cylinder slows the lid’s movement sufficiently to prevent injury to small fingers. Suitable for lids or doors weighing between 17 lbs and 25 lbs. Extended length: 7.95 inches (265mm); compressed length: 4.35 inches (145mm). Each spring supports up to 100N (10kg) of pressure. Note: Not suitable for steel or heavy-duty tool cabinets. Simple to install with included mounting brackets. Position the spacer 20% of the door width from the hinge. For new installations, measure at full extension before drilling to avoid unnecessary holes and ensure proper alignment. This cabinet lift system includes all necessary components. Easy to assemble. If compatible, remove old hinges from existing brackets and replace with the new ones. Use a screwdriver to release the clip, detach the hydraulic rod, and install the new unit in the same position.