HAZARD 4 Operator Skull(TM) Rubber Patch by (R) Washable rubber patches with hook-fastener (Velcro) backing Can be mounted on any loop patch area Easy to remove and wash Size: 3.3" L x 2.6" W x .2" D (8.3 x 6.6 x .4 cm) Main Material: TPR rubber 3-D injection-molded