Battery holder brackets are made of ABS plastic, suitable for DIY 32650 cylindrical battery combination, also important parts of maintaining the batteries. Hole Diameter: 26.4mm/1.04 inch; Hole Distance: 27.5mm/1.08 inch; Size: 56mm x 29mm x 8.8mm/2.2 inch x 1.14 inch x 0.35 inch(L*W*H); Color: Black. With slots at the edge, all brackets can be joined together without other tools, match up firm, with strong. Batteries not included
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