The banding wheel is a great aid for potters looking to accurately create Designs Allowing them to turn them slowly and evenly. These banding wheels are about as good as you can get and are made from cast iron/aluminum with a ring of steel bAll bearings for smooth and easy operation. The concentric circles on the head Allow for simple centering. Stem below wheels Allows you to grip wheel while slowly turning. SmAll - Features a 7" diameter wheel, Stands 4.5" high and has a 5.75" base. Weight 4.18 lbs. Large - Features an 11.75" diameter wheel, Stands 4.5" high and has a 7" diameter base. Weight 9.5 lbs. The banding wheel is a great aid for potters looking to accurately create Designs Allowing them to turn them slowly and evenly. These banding wheels are about as good as you can get and are made from cast iron/aluminum with a ring of steel bAll bearings for smooth and easy operation. The concentric circles on the head Allow for simple centering. Stem below wheels Allows you to grip wheel while slowly turning. SmAll - Features a 7" diameter wheel, Stands 4.5" high and has a 5.75" base. Weight 4.18 lbs. Large - Features an 11.75" diameter wheel, Stands 4.5" high and has a 7" diameter base. Weight 9.5 lbs.