Review on Penguin Pottery Bat System: Boost Productivity & Save Space with 5 Bat Inserts for Wheel Throwing – Ideal for Mugs, Pots & Small Pieces by Denise Davis

This works well with our school bikes and we find it very convenient for students to switch between projects. It is durable, stable and easy to clean. The only downside is that the whole system isn't the cheapest. If you have a private studio they are great and will last a long time. If you're popping by students left and right and need something less expensive, you may need to look elsewhere. For the money this is an improved product and well worth it. It's just not in my budget to buy 18 sets plus fountain pens.