This is a used item and has some age, so there is some silver tarnish, etc. However, there are few shank scratches, and I think the condition is good for a used item! The rim is also clean and has a smooth feel! ・4BFL Excellent response and clarity in the high range. Rich and resonant sound. Shallower cup than 4FL. Cup Diameter: 16.50mm Rim Width: 5.17mm Throat: 4.6mm Backbore: Open. Large shank. FL Shank: Thick shank (large fitting) that fits Yamaha, Jupiter, XO, etc.