When the battery is docked, it will be securely locked in place by own screw, the battery will not out.The hard plastic bracket is sturdy and durable, easy to install.Can be installed at any , or placed under the shelf.Fixing bracket suitable for for For 10.8V 12V batteries.The battery holder is designed with 3 slots, which can 3 batteries at the same time.The fine-textured guide rail provides a safe and grip, which can perfectly fix the battery without the risk of loosening or falling.The tool and battery holder is the perfect gift for , builders, electricians, locksmiths and to power tools.Accessory Type: Battery Accessoriescolor:BlueMaterial:plasticPackage Contents:1 x Battery Holder(The color of the screws is random, you cannot the specified color)Only the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.