Built in spring makes lids feel lighter, improving user comfort without added hardware. Easy torque adjustment in the field reduces maintenance time with no special tooling. Covers create a clean, finished look while protecting internal components Lift assist range of 0~65. Hinge blades are L-shaped, ideal for long width lids. Retaining torque can be adjusted by turning the adjustment nut with a 3/8 (10mm) wrench using the diagram below.