Onwon 4 x 1.5V AA Battery Case Holder Leads Black w Cap Whith On/Off Switch 2 Pcs AA cell battery holder is intended for 4 AA batteries. Dimension: Approx. 70 x 65 x 20 mm (L x W x H),Package include 2PCS Battery Case Holder. High quality battery holder case with wire leads for easy soldering and connecting. Has on-off switch functioneasy install, convenient to use. Great for use in electronics applications and small hobby projects.