Leaking battery acid is about the worst that can happen to your oil tank and the parts underneath it. Battery Wrap mats provide the ultimate protection here. The material combination consists of black felt material that absorbs and neutralizes battery acid plus adhesive heat barriers made from woven silica with a flexible aluminum finish. Each kit includes 2 felt mats (8 x 40” and 8 x 12”) and one thermal barrier (8 x 40”) which may be cut to size and will fit all Harley batteries.