Sized to hold and organize keys to rings and for organizing smaller items, the Nite Ize® S-Biner MicroLock utilizes a twist lever to locks perfectly, preventing any unintended or accidental openings. Crafted of high-quality stainless steel, the S-Biner MicroLock features a center lever made of durable plastic—a simple twist securely locks the gates, and keeps them locked until you twist it open again. The MicroLock is great for removing a single key from a ring when you want to jog or take a ride, give it to your mechanic, or leave it for a friend or babysitter. In short, the MicroLock is versatile, convenient, and ultra-secure. Dimensions: 1.38" x 0.57" x 0.28". Weight rating: 3 lbs.