1.M-Lock hub and customized paper cover 2.Unlimited addition of ... booklet, holds firm of digit tray, replace glue, and gives the totally new appearance to media distributors for ... 1. Disc Locking System - M-Lock mechanism for easy and non-stressful disc insertion and removal, protect disc effectively2. Injection Quality ... 3. Qty/20' FCL: 1,125 ctns;OEM and ODM are available. There are many other choices ...