1.) Shackle size: 4mm
2.) Lock sizes: 34.3 x 39.4 x 14.4mm
3.) Weight: 44.5g
4.) Key card: 50 x 25 or 86 x 54mm (same as the size of credit card)
5.) Colors: black and silver
6.) Neat shape
7.) Durable and safety with 4 pins cylinder
8.) Operation is simple and precise
9.) No combination needs to be memorized
10.) Easy to keep the coded keycard in wallet
11.) More than 25 key codes available
12.) Customized logos and designs printed on lock and keycards are welcome
13.) Taiwan and China patented US Pat. pending
14.) With customized packing artwork