The Universal Sewing Machine Bobbin Winder Assembly is an essential component for any sewing enthusiast. These durable rubber rings ensure smooth and efficient bobbin winding, making your sewing projects more enjoyable and uneventful. Easy to install and compatible with a wide range of vintage sewing machines, these rubber rings are a must-have for maintaining the functionality and longevity of your beloved sewing equipment. Whether you're a Sturdy seamstress or a hobbyist, this assembly will enhance your sewing experience. Features -Color:Black -Material:Rubber -Size:3.00X3.00X0.50cm/1.18X1.18X0.20in -Sturdy material: crafted from durable rubber, this bobbin winder tire offers exceptional durability and resistance to wear and tear, ensuring longterm use -ideal fit for treadle machines: designed to fit perfectly on vintage treadle sewing machines, this rubber tire is a musthave for maintaining your machine's functionality -Wide compatibility: suitable for various sewing machine brands and models, this bobbin winder tire is a versatile accessory for any sewing enthusiast -Quick and easy replacement: the userfriendly design allows for quick and easy installation, can replace your old tire and continue sewing without interruption -Enhanced sewing performance: this rubber tire provides smooth and consistent winding, resulting in even stitches and improved sewing performance Package list: 20pcs sewing machine rubber ring