18L (11.5mm / 7/16") - set of 8 buttons22L (14mm / 9/16") - set of 8 buttons28L (18mm / 11/16") - set of 8 buttons32L (20mm / 13/16") - set of 6 buttons
20L (12.5mm/ 1/2") set of 8 buttons24L (15mm/ 5/8") set of 8 buttons28L (18mm/ 11/16") set of 8 buttons36L (23mm/ 7/8") set of 6 buttons40L (25mm/ 1") set of 4 buttons44L (28mm/1 1/8") set of 4 buttons