Equipped with a plastic box, you can classify these spring pins in an organized manner, more convenient to carry and take out. Made of high quality 304 stainless steel, for use. fasteners for mechanical industry. M1.5-M8 sizes for your different purpose. 560pcs spring pins are enough for using. colour:Silver material:304 stainless steel Package Contents: 20 x M1.5x6mm Spring Dowel 20 x M1.5x10mm Spring Dowel 20 x M1.5x12mm Spring Dowel 20 x M1.5x16mm Spring Dowel 20 x M2x8mm Spring Dowel 20 x M2x12mm Spring Dowel 20 x M2x14mm Spring Dowel 20 x M2x16mm Spring Dowel 20 x M2.5x8mm Spring Dowel 20 x M2.5x10mm Spring Dowel 20 x M2.5x14mm Spring Dowel 20 x M2.5x16mm Spring Dowel 20 x M2.5x20mm Spring Dowel 20 x M2.5x30mm Spring Dowel 20 x M3x8mm Spring Dowel 20 x M3x10mm Spring Dowel 20 x M3x14mm Spring Dowel 20 x M3x16mm Spring Dowel 20 x M3x20mm Spring Dowel 20 x M3x30mm Spring Dowel 20 x M4x8mm Spring Dowel 20 x M4x10mm Spring Dowel 20 x M4x14mm Spring Dowel 10 x M4x20mm Spring Dowel 10 x M4x25mm Spring Dowel 10 x M5x10mm Spring Dowel 10 x M5x20mm Spring Dowel 10 x M5x30mm Spring Dowel 10 x M6x10mm Spring Dowel 10 x M6x20mm Spring Dowel 10 x M6x30mm Spring Dowel 10 x M8x16mm Spring Dowel 10 x M8x30mm Spring Dowel Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.