C4M XTR4 GenRing-Black Leather - OSA unique andadjustable accessory. TheC4M25 Gen Ringis an accessory that can be used in two ways. In its first option, the red colored ring is placed directly on the base of the package, generating anenhancementon it. In its second option, the accompanyingblack braceletis worn on the wrist. The material is 100% leather with luxurious clasps on the bracelet that enhance the aesthetic level of the accessory.