40 different sizes, 200 pieces spring assortment kit. Our spring assortment kit includes 40 different sizes, each size has 5 pieces, and a total of 200 pieces in the box. Premium compression springs with smooth surface and no sharp edges, good fatigue strength, high ductility. Spring coils are both durable and flexible for the right amount of tension. Each size spring steel comes with individual packaging. Size: ABCA 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 packages with corresponding size labels, allowing you to quickly select the suitable one.