Soss Spring Closer Hinge

The Soss invisible spring closer gives you a spring closer that is totally invisible from either side of the door when the door is closed. This closer is meant to be used with regular Soss hinges of the same size (Use them in combination with regular Soss #216, #218 or #220 hinges). Closure rate is adjustable The spring can be installed either inside the door or inside the door jamb. Allow one spring closer for every 55lbs of door weight Made of high strength plated steel and heavy duty zinc alloy castings. Sizes #216IC is for 1-3/8" thick doors. #218IC is for 1-3/4" thick doors. #220IC is for 2" thick doors.