Material: The window hinges are made of quality material, rust resistant and corrosion resistant, durable for usage Both-way Design: The casement hinges can adjust freely. Can be pulled from left and right, up and down Widely Use: The window hinge widely used in crank-out and push-out casement windows, awning windows, hanging windows, transom windows etc Construction: This concealed casement hinge is made from stainless steel and helps support windows during opening and closing. It is built for regular use in home setups where window parts move often