uxcell 50 x Silver Tone AA Battery Positive Negative Conversion Spring Plate Product Name : Battery Spring Plate;Material : Metal Fit for : 1 x AA Batteries(Battery is not included);Plate Size : 20 x 12mm/ 0.8" x 0.47" (L*W) Spring Length : 11mm/ 0.43";Color : Silver Tone Net Weight : 51g Package Content : 50(2%) x Battery Spring Plate