Package includes (1) Dual AAA battery holder with leads. AAA Battery Holder Voltage Output: 3V, 2 x 1.5v AAA battery= 3v AAA battery holder. Dimensions of Battery Holder for AAA: 2.082" x 0.948" x 0.516"/5.29cm x 2.41cm x 1.31cm(L*W*H); Weight of (1) Dual AAA Battery Holder with Leads: 0.176oz/5g. Leads: all 2 AAA battery holder with leads, they are tinned wire end; Wire Length: 5.9"/15cm; Wires Diameter (count in the PVC isolation around the wire): 0.0393"/1mm; Wires Color: red and black.