Specification - 10 packs battery holders, 20pcs screws, made of sturdy ABS plastic, it's super . Batteries can be hung in an organized manner or under a shelf. Battery Holder Compatible with for 20v Battery - Battery holder 100% Compatible with for 20v battery 1.5Ah 2.0Ah 2.5Ah 3.0Ah 3.5Ah 4.0Ah 5.0Ah 6.0Ah 6.5Ah 7.0Ah 7.5Ah, etc. Easy to Install - The battery holder has screw holes and can be mounted at any angle, on wall, upside down, or placed under the shelf. Storage Battery - Place the battery: Put the battery into the battery holder. Remove: remove battery. Each battery is stored separately to avoid damage due to friction and collision, protect the battery, and keep it tidy. Colour:As Shown Material:ABS Package Contents: 10 * battery holders 20 * screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.