Indoor combination lock is best used as a school locker lock and gym lock, providing protection and security from theft.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.Preset three digit combination lock for keyless convenience; Same combination opens both locksCombo lock is constructed with a metal body, anodized aluminum cover, hardened steel shackle, and anti-shim locking mechanism for strength and security; Made in the USA1-7/8 inch (48 millimeter) wide lock body; 9/32 inch (7 millimeter) diameter shackle with 3/4 inch (19 millimeter) length, 13/16 inch (21 millimeter) widthPack of two combination-alike padlocks available in blue, red, and purple (color randomly selected at time of shipment)Product Features：World's first combination lock that opens on up/down/left/right directional movementsPatented technology is faster, easier and more secure than a standard combination lockMaximum security with anti-shim technologyCombination can be reset to any number of movements in any sequence2-1/8in (54mm) Wide metal body can be opened one-handed without looking for ease of useMatching passcode indicators (letters, numbers, colors, shapes, symbols) are included for added customization - simply apply over arrowsHardened steel shackle for increased bolt cutter protectionEach package contains one lockUsing Menthod：Initial password locationThe default password of this lock is displayed on the guide of this page as four arrows that are up,down, left, and right.How to unlock it?1. Before each use, press the lock hook to the end and release the lock hook. Repeat the above action twice to clear.2. On the password panel, slide the arrow keys to enter the default pas