Designed with flexible and fully rotating flags, a tamperproof closing mechanism and a hardened black plastic cap security and high retention are guaranteed. Alpha Large also features a metal tipped male pin to ensure easy and fast application which minimises tissue damage and promotes quicker healing. Print: Laser marked with a 372 prefix and 12 digit number replacing lost tags issued from 1st November 2016. Size and Weight: W 57 x L 77mm, 11.7g