uxcell AA Battery Positive Negative Conversion Spring Contact Plate 30 Pcs Product Name : Battery Spring Plate;Material : Metal Fit for : AA Batteries;Plate Size : 25 x 12mm/ 1" x 0.47" (L*W) Spring Length : 11mm/ 0.43";Color : Silver Tone Net Weight : 27g Package Content : 30 x Battery Spring Plate