40 Different Sizes, 200 Pieces Spring Assortment Kit Our spring assortment kit includes 40 different sizes, with multiple pieces per size, totaling 200 springs in one box. Premium compression springs are smooth, burr-free, and designed for good fatigue strength and high ductility. The spring coils offer both durability and flexibility to provide the right amount of tension. Each spring size is made from spring steel and comes in an individual compartment with clear size labeling for easy identification.Size Dimensions (Wire Diameter x Outer Diameter x Free Length): 0.016" x 0.2" x 0.39" 0.016" x 0.2" x 0.59" 0.016" x 0.2" x 0.79" 0.016" x 0.2" x 0.99" 0.016" x 0.2" x 1.19" 0.02" x 0.24" x 0.39" 0.02" x 0.24" x 0.59" 0.02" x 0.24" x 0.79" 0.02" x 0.24" x 0.99" 0.02" x 0.24" x 1.19" 0.023" x 0.276" x 0.39" 0.023" x 0.276" x 0.59" 0.023" x 0.276" x 0.79" 0.023" x 0.276" x 0.99" 0.023" x 0.276" x 1.19" 0.027" x 0.295" x 0.39" 0.027" x 0.295" x 0.59" 0.027" x 0.295" x 0.79" 0.027" x 0.295" x 0.99" 0.027" x 0.295" x 1.19" 0.031" x 0.33" x 0.39" 0.031" x 0.33" x 0.59" 0.031" x 0.33" x 0.79" 0.031" x 0.33" x 0.98" 0.031" x 0.33" x 1.18" 0.035" x 0.37" x 0.39" 0.035" x 0.37" x 0.59" 0.035" x 0.37" x 0.79" 0.035" x 0.37" x 0.98" 0.035" x 0.37" x 1.18" 0.039" x 0.39" x 0.39" 0.039" x 0.39" x 0.59" 0.039" x 0.39" x 0.79" 0.039" x 0.39" x 0.98" 0.039" x 0.39" x 1.18" 0.043" x 0.41" x 0.39" 0.043" x 0.41" x 0.59" 0.043" x 0.41" x 0.79" 0.043" x 0.41" x 0.98" 0.043" x 0.41" x 1.18"Easy to Store Mechanical Compression Springs All compression springs are neatly organized in individual compartments with corresponding size labels, allowing you to quickly select the appropriate spring for your application.