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!