These Stainless-Steel Nite Ize S-Biner MicroLocks are the perfect size to hold and organize keys and clip them to rings or keychains without the frustration of traditional split rings. With two gates, you can clip keys to one side, then clip the other side to your ring. Twist the center lever and the gates are locked firmly in place until you choose to unlock them. Each MicroLock can hold up to three keys, but they are also great for removing a single key to take on a run or ride, to give to your mechanic, or to leave for a friend. The S-Biner MicroLock is a versatile, convenient, and ultra-secure key holder. Dimensions: 1.39" x 0.59" x 0.27" | 35.46mm x 15.08mm x 7.07mm Weight: 0.14 oz | 4g Weight rating: 3 lb. Warning: not for use where disengagement could result in bodily injury or property damage. Not for climbing.