[90 sets of 6 sizes]M5x4mm, M5x5mm, M5x6mm, M5x8mm, M5x10mm, M5x12mm, 15 PCS of each size. [High quality material] these Chicago screws are made of high quality carbon steel with nickel plated surface, clear grain, smooth and burr-free, waterproof and durable, no rusting. [Excellent design] chamfered design is safer, deep thread, not easy to slip during rotation, even force and good tightening strength. [Widely used] These leathercraft rivets are especially suitable for DIY various leather crafts, as a fixed or decorative items used. For example: belt connection, bag decoration, clothing decoration, key bag nails, stationery ledger nails, photo album nails, calendar screws, etc. [Easy to install] pick the right length of screw, put the stud through the hole, align the nut with the stud and tighten the screw. Note: When installing, the hole please do not exceed 4mm, if the hole is too large, it is easy to cause the screw to fall off. Material:carbon steel colour:Brown / Silver / Black Package Contents: 1 set * leather rivets Only the above package content, other products are not included. Note: Light shooting 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. Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.