Check the listing for details. 8 Pcs 12" Pottery Wheel Bats Pottery Bat System Bats 1/3" Thick. Condition: New. Listed at 65.22 USD. Product Details1.PIN HOLES - The standard is for bat pins to be placed 12"(305mm) apart. We design pottery bats with two pin holes standard so that can adjust to fit snugly to most wheel bats cause some wheels may have pins that are slightly wider or narrower (especially after many years of use).2.How to Make The Bat Dry Faster? - Wash the bat well and leave it to dry, preferably tilted up on its side so water will run off and it can dry from both sides.3.COMPLETE ACCESSORIES - The pottery wheel bat comes with 8 sets, which include a pottery bat of 8 pcs, and pin screws of 16 pcs. Each pottery wheel bat measures 12" x 10" x 1.2"/305mm x 254mm x 30mm(Bat Diameter x Pin Holes Apart x Pin Length), Material: wood density board, Color: brown, Shape: Round.4.