ITEM NAME:2PCS New 9V Battery Holder Box Case Wire Plug 5.5*2.1mm for Arduino C1N6 2PCS New 9V Battery Holder Box Case Wire Plug 5.5*2.1mm for Arduino C1N6 100% Brand new and high quality. Quantity:1. Material: ABS Weight:20 Color:black Size:5.5 x 2.1mm Package Included:2 x 9V Battery Wire Plug Holder Box Case for Arduino Note: Light shooting 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..Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. Size:5.5 x 2.1mm.