1825-2500 - Badge Holder Convention 100 Per Pack This clear, semi-rigid convention badge holder with nickel-plated steel crimp pin is made from flexible acetate material, making it ideal for conventions. The semi-rigidity of the badge holder guarantees simple insertion of an event participants' display credentials. The convention badge holder is 10 mil thick. The badge holder is completed with a nickel-plated, steel crimp pin and secures easily to clothing. This clear acetate convention badge holder comes in two size options. Maximum card size: 2 1/4" x 3 1/2" (57 x 89 mm)