Please confirm the size before place order, There is an accurate sizeinformation in the picture. the whole lock has a heavy, sturdy feel to it, it's a good lock especially for gym and locker, office, gate, backpack, outdoor. gate, 4 dial provide 100,000 different letter combinations, there are 10letters on each dial, you can easily to set your own combination.How To Set Your Own Combination:1. To ensure that the initial combination alignment on both sidesof the indicatrix.2. Pull out the shackle.3. Turn the right housing button 90 degrees clockwise.4. Turn the dials to set your combination.5. Turn the right housing button 90 degrees anticlockwise.Package Included:1 x 4 digit combination locks.Specifications:Materials: Steel and zinc alloyDimension: 3.4*3.3 inchWeight: 9 oz.