[Securely locked ]When the battery is docked, it will be securely locked in place by own clip, the battery will not fall out [Waist through the belt]Can be fixed to the waist through the belt, which is convenient for carrying spare batteries when working at height [Sturdy and durable]The hard plastic bracket is sturdy and durable, easy to install [Easy to install]Can be installed at any angle, or placed under the shelf [Fixing bracket]Fixing bracket suitable batteries and for 18V batteries for BL1860B BL1850B BL1860 BL1850 colour:Blue Material:plastic Package Contents: 10 x Battery Rack Only the above package content, other products are not included. Note: Light 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.