Clay Play Pottery wheel bat system with customizable pin holes for irregular wheel heads. Bat system includes 5 square batt inners. nbsp; This bat system for potters will save you time and space when throwing clay and trimming on the wheel. nbsp; Drill holes according to your pins specifications on your wheel head, nbsp;then you will be able to slip bat on and off your pottery wheel pins while the pin holes will hold the bat firmly to your wheel head. nbsp; nbsp; Simply insert square bat inner, throw your ceramic pot then wire before removing inner bat using a flat potter s tool. nbsp;Then place the square inner with your pot on your drying shelf. nbsp; FITS ANY POTTERY WHEEL: nbsp;The outer bat is 12.2 in diameter fitting most wheel heads. With no per drilled pin holes you can customize nbsp;holes and sizes to your requirements using a drill. Inner square bat inners are 7 nbsp; EASY TO USE: Once outer bat is drilled through, it is easy and to slip on and off your pottery wheel pins. nbsp; Simply insert square bat inner, throw your pot then wire before removing inner bat using a flat potter s tool. nbsp;Then place the square inner with your pot on your drying shelf. nbsp; POTTERY BAT SYSTEM ; Includes one outer bat and 5 square inner bats. nbsp; SNUG FIT: nbsp;Pin holes and inners are designed to be a sung fit and too firmly hold the bat to the wheel head to limited movement when throwing. If you need to widen the holes or inners it s easy to do with al nail file or sandpaper. nbsp; IMPROVE YOUR WORK EFFICIENCY: With easy to fit inners you will save time on inserting and removing standard bats and spend less time on clean up. Most importantly you will save space by drying your pots on the small square inserts instead of regular round bats. nbsp; Try it and you re guaranteed to love it. All purchases are covered by amazon a-z policy. nbsp;