Leather non-mar auto body hammer boot facings are draw string secured to your panel beater hammer or auto body hammer. Eliminates the marring of the metal surface but are successfully used for softening the impact of the steel hammer on metal surface. Use with very good success on aluminum. provides excellent control of blow force so that overstretching of the metal is keep in check. Useful while cold shrinking and removing dents without damaging paint. Made from two ply layers of leather with a cloth boot sandwiched and sewn together. Simply tie on the boot with a drawstring provided. DTHL001 fits 1 1/4-1 1/2" diameter hammers.