For your consideration is 2 Replacement Bobbin Winder Tires for White sewing machines.
Part # 4331
Approximate Measurements
Tire Thickness ~ 4.75 mm ~ .185"
Inside Diameter ~ 10.00 mm ~ .395"
Outside Diameter ~ 19.25 mm ~ .760"
Fits : WHITE - 310, 505, 510, 690, 734
See photos for further details. Please ask any questions before bidding! Thanks for looking!