40 different sizes, 200 pieces spring assortment kit. Our spring assortment kit includes 40 different sizes, each size has 5 pieces, for a total of 200 pieces in the box. Premium compression springs with smooth surfaces and no sharp edges, offering good fatigue strength and high ductility. Spring coils are both durable and flexible, providing the right amount of tension. Each size is made from spring steel and comes in an individual compartment with clear size labeling for easy identification. Size: ABC A is wire diameter, B is outer diameter, C is 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 packed in individual compartments with corresponding size labels, allowing quick and easy selection.