Invisible Spring Closers 4.6" H x 1.12" W Invisible/Concealed Single Door Hinge

The SOSS 218IC Invisible Closer hinge is completely concealed when the door is closed. No part of the hinge or closer mechanism can be seen from either side of the door. The rate of closure is fully adjustable after installation. One closer hinge is required for every 55 lbs. of door weight or portion thereof. SOSS Invisible Closer Hinges cannot be used with other types of hinges in the same application.