Brown sharkskin – 20 mm regular – 75/125 mm – 4 mm thick Price is $55.00 Dayton – 20 mm Regular – 75/125 mm – 3.75 mm thick Price is $55.00 Derb – 20 mm regular – 75/125 mm – 4 mm thick – middle hole a touch wider Price – $65.00 Derb – 20 mm short – 70/110 mm – 4 mm thick – hand made Price …