The Spring Combination includes 200 pieces of extension and compression springs, available in 20 different sizes. This variety of spring sizes will meet diverse needs. The springs are made of material, offering strong corrosion resistance and a long service life. The various sizes of springs are organized in a transparent, durable plastic box for easy storage and portability. The box is labeled to indicate the position of each spring, allowing for quick identification. These springs are suitable for splicing and securing objects between metal sheets in tools, equipment, hand tools, automotive applications, spare parts, and other fields. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store