After printing, stick a neodymium iron boron button magnet of appropriate size (13mm diameter and 3mm thickness is recommended) in the round hole on the back of the wall mount. Then you can glue it to the side of a refrigerator or microwave, or you can use the strip groove on the back to fix it to another place. knief hanger,make up with 4 parts.with Letters and patterns on the surface. it including four parts,only upload 1 part of size chart,the photos show you the whole.for it can show you the size,if you really need the whole.pleease contact us. 3D file format: STL 3D model size: X 133 × Y 38.1 × Z 6.11 mm