Vintage Singer sewing machine molded steel bobbins, will fit machines that use class 66 bobbins which include the 66, 99, 101, 185, 192, 201, etc. You will receive 4 bobbins. Good vintage condition, may have typical discoloration / minor tarnish due to age similar to the examples shown. Thread has been removed. Original, early Simanco bobbins #32522.