Battery Holder, 2-D Cell, 3 Volt DCProduct Details:Single Clip Holds 2-D Cell Batteries in PlaceLightweight Yet Strong, Constructed of Aircraft Grade AluminumTermination: Solder LugsContacts: Brass, Nickel PlateLugs: Brass, Tin PlateFrame and Battery Clips: AluminumInsulating Washers: Moisture Proof Resin Impregated FiberMounting Type: Chassis MountDimensions: 4.921″ (L) x 1″ (W) x 1.26″ (H)4 Mounting Holes: 0.128″ DiameterKeystone#186