4 cones of high quality polyester threads of 6000 yards per cone. All the spools are wrapped in clear plastic to prevent damage from dust. This thread is great for serge machines since you get 4 cones of the same color as required by many serge machines. It is also good for hand and machine quilting and since it?s made out of polyester it has very high tensile strength and items sewed/quilted will last a long time for you to enjoy your labor of love. It can be used on all regular sewing, piecing, applique, serge home and high speed commercial machines. High Quality, High Tensile Strength, Low Lint Thread. 100% Polyester Spun. Best Quality - Will not Break at High Speed Machines ALL PURPOSE THREAD - 4 Cones of Polyester Threads for Sewing Quilting Serger Color as shown. Over 30 colors in stock. This thread is great for serge machines since you get 4 cones of the same color as required by many serge machines. GOOD QUALITY - High Quality, High Tensile Strength, Low Lint Thread. 100 Polyester Spun. it will not be fray or break easily. This high-quality thread is perfect for sewing efficiently. IDEAL WEIGHT LENGTH - Each Cone is 6000 yards. You will receive total of 24000 yards. Each spool has 40 weight (most commonly used) which makes these spools ideal for all sorts of embroidery projects The threads are ideal for Brother, Babylock, Janome, Singer, Pfaff, Pegasus, Juki, Husqvarna, Bernina and all other types of sewing machines. WIDE APPLICATION - Good for any home or Commercial Machine. Use for Serger, Over lock, Merrow, single needle etc. The sewing thread can be used for a variety of sewing machines or embroidery machines which with automatic winding function. The thread set to keep your sewing project simple, practical and user-friendly, whether you're a professional or a beginner. It could fulfill most of your home use project needs. SUPERIOR STRENGTH - Will not Break at High Speed Machines. Our embroidery machine thread has excellent tensile strength which brings down chances of any breaking or fraying fewer thread breaks allow you to complete your projects more efficiently and in a frustration-free manner. Long elongation of polyester also helps eliminate the chances of looping and puckering.