Features: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information;2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed.3.Replacement for Riccar sewing machine. It is an ideal replacement for your old or broken one.4.Suitable Models: Replacement for Riccar 990, R750, R650, R551, 414, 500, 525, 555F, 572, 606, 666FA, 805, 806, 807, 808E, 888, 900, 30, 30, 30, 30 3500, 3600, 4001, 4003, 8400, 8500, 9150, 9160, 9600, 9700, 9800, 9900, RE571, RE581, RE591, RM570, 53741.5.Replacement for Tacony FA762.Specifications:Material: Metal PlasticColor: White GreySize: 2.3x2.6cm/0.91x1.02inch(LxW)Aperture: 8mm/0.31inchWeight: 37gPackage include:1 x Hook Drive Gear2 x Screws