Easy storage: The springs are neatly packed in a clean, transparent box.These springs in each grid has a corresponding size mark, which is convenient for you to pick and place. We always care which size you really need. We choose 15 different sizes which you may need from thousands sizes. 304 Stainless steel: which can not rust in humid environment and have strong oxidation resistance, acid resistance and corrosion resistance. 15 Kinds Size: the first one is wire diameter, second is outer diameter, 3rd is overall length. 0.011"x0.16"x0.39", 0.011"x0.16"x0.59", 0.011"x0.16"x0.79", 0.011"x0.16"x0.99", 0.011"x0.16"x1.18", 0.016"x0.2"x0.39", 0.016"x0.2"x0.59", 0.016"x0.2"x0.79", 0.016"x0.2"x0.99", 0.016"x0.2"x1.19", 0.02"x0.24"x0.39", 0.02"x0.24"x0.59", 0.02"x0.24"x0.79", 0.02"x0.24"x0.99", 0.02"x0.24"x1.19" International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.