Feature●DURABLE STAINLESS STEEL---Stainless steel bobbin is practical, rustproof, strong, not easy to break or deform, durable and can be used for a long time●PRACTICAL ACCESSORIES --- These lightweight spools can stop spinning quickly and effectively to prevent line from becoming tangled when sewing stops and starts●EASY STORAGE---Comes with a clear plastic storage bag, very convenient to organize, easy to carry, dustproof and damage-proof●Scope of application---The locking cylinder is suitable for most industrial sewing machines used in the industry, updating and replacing old accessories●PREMIUM QUALITY---Unbreakable high quality sewing spool, never worry about running out of spoolDescription