The Pyramid Shammy Pad uses the absorbing power of leather to keep your bowling ball coverstock clean and tacky like nothing else can! Leather is the best option for removing oil from the coverstock. Even better than microfiber! The Pyramid Shammy Pad will allow your ball to read the lane cleanly and consistently for the strongest possible reaction, each and every shot. Measures 7 3/4″ L x 8 5/8″ W To clean the leather shammy, mix a solution of warm water and dish soap, dip a soft cloth into it, wring it out and wipe the shammy. Use a second clean, damp cloth to wipe off the soap. Dry with a towel, then let it air dry. Warm, soapy water should remove any oil and dirt build up. Repeat if necessary.