This is a long plastic battery holder that holds 4 AA batteries, connecting them in series arrangement to form about 6 V output. This battery holder has a red and a black wire lead that are about 6 inches long each. Clearly marked for the size and the direction of placing batteries. The center divider and the side walls are curved to securely hold the batteries.

This battery holder does not have any holes at the bottom. It may be mounted using double sided adhesive tapes. The ends of wire leads are stripped and tinned 5 mm.