XIANQI Made of Zinc Alloy,not easy to rust,durable and anti-corrosion. Make the lid can be stopped in any degrees,bring great convenience to daily life. Opening angle: upward door open adjustable angle of 75,90,110. Designed for support on drop lids of desks, cabinets, keeping the lid up, it is self-adjustable, easy to use. Fully adjustable for different weights by turning a screw at the middle of the arm to setup correct friction pressure. Product description Easy to install, Easy to use! Each can be used for right or left-Hand Mounting. Holds the door in any open position or lets it slide down gently. Generally suit for many kinds of downward and upward ,high position hanging cabinet. Specification Material:Zinc Alloy; Package Include: 1 Pack of 2 cabinet hinges (Includes screws,connect metal parts and hexagonal wrench) SizeAs Shown Note: Pay attention to the size of the product,the small cupboard door does not apply.