Easy to assemble: there are no tools required, all you need is your dexterous hands or coin, it can hold keys up to 3.23 inches long with more than 0.16 inches hole; Note: frequent use may cause the screw to become loose, please tighten it every 2 weeksSave your space: the key organizer can hold up 4 - 16 different keys or tools, can organize your keys methodically, and effectively save the space, can help you find your keys quicklyWhat you receive: the package includes 2 sets key holders, contains s-biners, metal ring, studs, screws and spacers packed in gift boxes, there 2 colors provide for youClever design: the press button closure of the leather key holder strap secures your keys, nicely wrapping them in the leather, eliminating the risk of pointed edges damaging your phone, the compact design can prevents them sloshing around or making noiseGood material: the key holders are made of quality cowhide leather and metal, the soft imitation leather can gives your comfortable touching feeling, Good and sturdy, can provide you long time serving life