Plasti-Bat was designed by studio potters to be a versatile, long-lasting, high-quality bat that is virtually indestructible! Made of 1/4" to 3/8" thick, very rigid, high impact plastic, they will provide continuous use, will not splinter, delaminate, swell or shrink. They are easy to clean and are impervious to water and most chemicals. Plasti-bats drilled with pin holes have one oblong hole for a better fit on your AMACO or brent wheel. The holes will remain just as drilled and will not become oversized with use. The 8" to 18" bats are 1/4" thick. Plasti-Bats are the perfect accessory for your brent wheel.