Ample to Use and Share: the package you receive comes with 15 pieces of thread spool caps in 3 different size, 5 pieces for each size; The abundant quantity and sizes can meet your different use and replacement needs 3 Sizes to Choose: our thread caps for spools of thread are designed in 3 different sizes, Different sizes are designed for different bobbin, medium for standard bobbin, large cap for conical bobbin, small for small and long bobbin; You can choose the size you need according to actual needs, and you can fit the spool correctly Reliable Material: made from plastic material, these sewing pin caps are designed to last long and provide an effective solution for most of your wire operational needs, not easy to tear or break, so you can use with confidence Practical Tools: when you use a sewing machine for a sewing project, the thread can get stuck in the tear in the spool and always break the thread; You can use the spool caps for sewing machine to avoid the thread from entering the cut edge of the spool, thus avoiding thread stucking, needle breaking, needle skipping and so on to hurt your precious sewing machine Versatile Size and Functionality: the sewing and embroidery machines parts set comes in 3 different sizes, 5 pieces for each size, making these spool caps versatile; They prevent the wire from caught, ensuring a smooth operation for most occasions, suitable for both experienced and DIY enthusiasts Colour:White Material:Plastic Package Contents: 15 * Spool Cap Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.