ITEM NAME:Plastic double 18650 Battery holder Black D8O1 Plastic double 18650 Battery holder Black D8O1 Product Name: Battery Holder, Battery type: 2 x 3.7 V 18650 (battery not included) Size Housing: 8.6 x 4 x 1.5 cm / 3.4 inchx 1.6inch x 0.59 inch(L * W * H); Material: Plastic, brass Color: Black, Net weight: 15g Package content: 1 x battery holder Only the above package content, other products are not included. 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.