ITEM NAME:Black 5PCS Plastic Battery Case Holder Storage Box for 1 x 18650 Batteries 3.7V.1pcs 18650 Battery Holder Case Leads 3.7V Clip Type for Soldering / Connecting. Takes 1 standard size 18650 batteries side by side to form a compact battery of 3.7V using alkaline batteries. Battery Type: 1 pcs 18650.