Battery Holder, 8 AA, with ON/Off SwitchProduct Details:Black Plastic Battery Holder with Cover and ON/Off SwitchWire Leads: 150mm (Red and Black Wire)Holds 8 AA Size Batteries Either Alkaline or RechargeableDimensions: 5″ (L) x 2.84″ (W) x 0.76″ (H)Shell: ABS plasticApplication: Use for 12 Volt DC Battery Supplies, Arduino Micro-Controller, 12 Volt DC LED Power Supply, ectBatteries NOT IncludedUNKRP000858