3.5″ overall. Blue G10 construction. Tools include: Pocket clip and Key fob. Screws included (to hold 4, 8, or 12 keys). Load keys in preferred order. O-rings keep keys snug and allow for adjustment of tension. Washers between keys for easy deployment. Includes link for a key fob. Holds up to 12 keys. Keys and accessories are not included. Hang packaged.