Push to close, pull to open. The snap-in magnetic catch is made of black polypropylene with 1010 zinc plated steel metal parts. Magnet is barium ferrite. Easy snap in installation into 1.5" x .32" punched hole. A mounting bracket is available for the SC-021 for applications where the frame is not suitable for punching. Mounts with two #4, #5 or M3 screws. Self adhesive steel strike is 1.25" x .75" x .09". Strike and mounting bracket not included and must be ordered separately.