Width, length & height are some of the more common measurements to consider. This SKU has a 1 1/2 in width x 1 3/5 in height. The Brady keyed & safety padlock is made of aluminum, is packaged 1 per pack, comes in red and meets ANSI/ASSE Z244.1, FDA Approved, OSHA 29 CFR 1910.147 (4)(ii)(A)(1)(c)(5)(ii)(c)(1), RoHS Compliant standards. M