Description: - Good quality: made of quality material, plated with silvery nickel/copper plated,sturdy and anti-rust, easy to bind, install and remove, can use repeatedly, good tightness. - Easy to apply: this set of screw posts is easy to install, use a drill to punch a hole of 5 mm diameter, then you can install the 2 parts from 2 sides, they can bind different items. - Storage box: packed in a small clear storage box and partition put according to the sizes, make you to find the component quickly. - Wide application: especially suit for all kind of art and leather handicrafts decoration, bookbinding, document, book, album, belts, leather bracelets, shoes, boots, handbags, hats , DIY crafts, etc. Package includes: - 120 Pcs Nickel plating Son and Mother Screw Posts Nail Rivet : - M5x6mm (10Pcs), M5x8mm (10Pcs), M5x10mm (10Pcs) , M5x12mm (10Pcs), M5x15mm (10Pcs), M5x18mm (10Pcs), M5x20mm (10Pcs), M5x25mm (10Pcs), M5x30mm (10Pcs), M5x35mm (5Pcs), M5x40mm (5Pcs), M5x45mm (5Pcs), M5x50mm (5Pcs), M5x60mm (5Pcs), M5x70mm (5Pcs). - 120 Pcs Copper plating Son and Mother Screw Posts Nail Rivet : - M5x6mm (10Pcs), M5x8mm (10Pcs), M5x10mm (10Pcs) , M5x12mm (10Pcs), M5x15mm (10Pcs), M5x18mm (10Pcs), M5x20mm (10Pcs), M5x25mm (10Pcs), M5x30mm (10Pcs), M5x35mm (5Pcs), M5x40mm (5Pcs), M5x45mm (5Pcs), M5x50mm (5Pcs), M5x60mm (5Pcs), M5x70mm (5Pcs). Specification: Example:M5*35-70mm (90Pcs) , Refers to a screw with a screw diameter of 5 mm and a length of 35 mm, 40 mm, 45 mm, 50 mm, 60mm, 70 mm.90pcs for a set.