For different product combinations click here 3PCS 15813625PCS 158136810PCS 158135520PCS 1581366Features Outer Ring Diameter 17mm 0 67 appr Inner Ring Diameter 10mm 0 39 appr Thickness 0 24mm 0 01 appr Package included 200Pcs Battery Insulators Adhesive Paper Battery not included 2 Sheets included 100 insulators adhesive paper rings per sheet total is 200 ringsAdhesive cardboard paper for 18650 battery insulator Better protection to avoid short circuit on batteries Easy peel and stick application Package included 200 x Battery Insulators Adhesive Paper