Features:This spring kit includes extension springs and compression springs in 20 different sizes, 200 pieces in total. Spring assortment of different size will meet you different demands. With a durable plastic box for convenient storage and carry. Assorted compartment is convenient for you to store and find the desired size. An essential hardware for various repair and maintenance in vehicle, electric appliance, digital devices, etc. Specifications:Condition: NewMaterial: Spring SteelBox Size: approx. 21*11*3cm8.27*4.33*1.18inWeight: approx. 373gPackage Included:200pcs Spring with a Plastic Case76pcs Compression Spring(Diam. x L): 932" x 12" Qty: 10pcs38" x 58" Qty: 6pcs14" x 1332" Qty: 10pcs38" x 34" Qty: 12pcs732" x 1116" Qty: 10pcs2364" x 138" Qty: 8pcs732" x 112" Qty: 10pcs932" x 112" Qty: 10pcs124pcs Extension Spring:(Diam. x L): 1364" x 1316" Qty: 10pcs516" x 1316" Qty: 8pcs732" x 1" Qty: 10pcs14" x 78" Qty: 10pcs516" x 114" Qty: 10pcs1132"x 12732" Qty: 12pcs516" x 134" Qty: 12pcs932" x 2" Qty: 12pcs532" x 318" Qty: 12pcs316" x 134" Qty: 8pcs932" x 112" Qty: 10pcs1132" x 1716" Qty: 10pcs1This spring kit includes extension springs and compression springs in 20 different sizes, 200 pieces in total2Spring assortment of different size will meet you different demands3With a durable plastic box for convenient storage and carry4Assorted compartment is convenient for you to store and find the desired size5An essential hardware for various repair and maintenance in vehicle, electric appliance, digital devices, etc