1. The box is made of transparent PP plastic. After using up the baby in the box, this box can also put some small accessories, fishing hooks, buttons, needles and threads, which can be put or hung, and it is more convenient to carry.2. Scope of application: Fishing, maintenance and other tools3. Material: Galvanized4. Work style: Compression5. Transparent box size: 21x11x3cm6. Weight: About 360gProduct List:Compression spring:(5.5x27) x 10 pcs(5.5x38) x 10 pcs(6x12) x 10 pcs(7x13) x 10 pcs(7x19) x 10 pcs(9x18) x 12 pcs(9x35) x 8 pcs(9.5x16) x 6 pcsTension spring:(4x70) x 12 pcs(5x10) x 10 pcs(5.5x14) x 10 pcs(6x10) x 10 pcs(7x55) x 12 pcs(7.5x17) x 10 pcs(8x13) x 8 pcs(8x50) x 12 pcs(8.5x26) x 12 pcs(5x34) x 8 pcs(7x25) x 10 pcs(8x23) x 10 pcsSpecification: Package Weight One Package Weight 0.40kgs / 0.89lb One Package Size 22cm * 12cm * 4cm / 8.66inch * 4.72inch * 1.57inch Qty per Carton 40 Carton Weight 17.00kgs / 37.48lb Carton Size 45cm * 25cm * 42cm / 17.72inch * 9.84inch * 16.54inch Loading Container 20GP: 564 cartons * 40 pcs = 22560 pcs40HQ: 1310 cartons * 40 pcs = 52400 pcs