Product Name : Button Battery Holder;Fit Battery el : 1 x CR2450(Not Included Here) Material : Plastic, Metal;Body Size : 26 x 9mm / 1.1" x 0.35"(Max. D*H) Inner Diameter : 24mm / 0.9";Pin Distance : 20mm / 0.8" Color : Black;Net Weight : 5g Package Content : 2 x Button Battery Holder 2 Pins DIP type, for single CR2450 button battery Please pay attention to the Specification Table before purchasing, make sure our product is right what you want. Battery is not included here. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.