PRODUCT FEATURES: All compression springs are neatly packaged in plastic storage box, convenient to carry and use. The springs has smooth surface; good strength; strong ductility; durability and tension | WIDE APPLICATION: Widely used in doors; curtain; automobiles; bicycles; mechanical devices; umbrella; kettle; razor; aircraft; antique tape recorder; repair toy; pliers; piano; scissors; electrical; etc | PACKAGE CONTENT: 23 Different Sizes 300 Pieces Spring Assortment Kit | SIZE: 23sizes【Wire diameter×Outer diameter×Free length】【0.011x0.16x0.39"】;【0.011x0.16x0.59"】;【0.011x0.16x0.79"】;【0.011x0.16x0.99"】;【0.011x0.16x1.18"】;【0.016x0.2x0.39"】;【0.016x0.2x0.59"】;【0.016x0.2x0.79"】;【0.016x0.2x0.99"】;【0.016x0.2x1.19"】 | SIZE:And 【0.02x0.24x0.39"】;【0.02x0.24x0.59"】;【0.02x0.24x0.79"】;【0.02x0.24x0.99"】;【0.02x0.24x1.19"】;【0.023x0.28x0.39"】;【0.023x0.28x0.59"】;【0.023x0.28x0.79"】;【0.023x0.28x0.99"】;【0.027x0.3x0.39"】;【0.027x0.3x0.59"】;【0.027x0.3x0.79"【0.027x0.3x0.99"】