Descriptions: This battery box holder with 5.5 x 2.1 DC wire connector. Apply impact resistant material, professional made. Battery is not included here. Specifications: Product Name: Battery Case(Non screws) Battery Type: for AA Battery(not included here) Total Size: 58mm x 30mm x 62mm(L*W*H) Cable Length(Each): 15cm Package Content: 4 Pcs Battery Case Holder Note: 1. Please do not use this battery box charge. 2. Please do not connect the positive and negative directly. If connected, the wire will hot.