[150 Sets of 4 Color]: You can get 302pcs Chicago screws kit includes 300pcs round flat head chicago with screws in golden, silver, gun black, bronze and antique copper (30set/60pcs each color) , coming with a hole punch and a screwdriver for easy installation. The 5 color of leather rivet studs are easy to match with your different items, adding a touch of glamour for your craft work. [Size Information] The screw’s head diameter is 0.3”(7.5mm), the rod diameter is 0.11”(2.8mm) and its height is 0.28”(7.3mm); The head diameter of screw post fastener is 0.33”(8.5mm), hole diameter is 0.16”(4mm) and the height of screw post fastener is 0.24”(6mm). The hole punch’s length is 3.2”(81.5mm), width is 0.16”(4mm) and the screwdriver’s total length is 5.25”(133.5mm). [Zinc Alloy Material] Made of high-quality zinc alloy with fine finish, each chicago leather screws are smooth and burr-free for comfortable touch. A stable and dense oxide film on the surface, keep the color last. Our leather fastener rivets with nice rust and corrosion resistance performance can be applied repeatedly for a long time. [Easy to Use]: Comes with the hole puncher and screwdriver for simple installation. Firstly punch the holes with the 4mm hole punch. Secondly, align the round flat head nut and stud. Finally, tighten the screws with screwdriver. [Good Helper for DIY Leather Craft]: These Chicago screws are perfect for adding ornaments to the DIY leather crafts and bookbinding, such as leather belts, bound documents, bookbinding, handbags, dog collar, leather shoes, photo albums and all kinds of DIY crafting projects. Hope our products can inspire your creativity and imagination. Keadic 302Pcs 5 Colors Metal Chicago Binding Screws Rivets Assortment Kit with Setting Tool, 8*6MM Round Flat Head Slotted Screws Posts Buttons Nail Rivets Studs for Leather Albums Scrapbook ♠ [Product Specification]: Head Diameter: 8.5mm/0.33” Height: 6mm/0.24” Material: Zinc Alloy Color: Golden, Silver, Gun Black, Bronze, Antique Copper [Why choose Us]: ◎ Meet your Different Choice: 5 colors and abundant quantities are great enough to meet your demand for different DIY crafts. ◎ Easy to Store: Comes with a durable plastic case for keeping them organize. Each color of leather rivet screw is separate small compartments so that you could quickly pick up the desired one. ◎ Simple Operation: The slots are low profile, can be easy to bind, remove and install. [Package Included]: 30pcs x Golden Round Flat Head Studs 30pcs x Golden Screws 30pcs x Silver Round Flat Head Studs 30pcs x Silver Screws 30pcs x Bronze Round Flat Head Studs 30pcs x Bronze Screws 30pcs x Gun Black Round Flat Head Studs 30pcs x Gun Black Screws 30pcs x Antique Copper Round Flat Head Studs 30pcs x Antique Copper Screws 1pc x Hole Punch 1pc x Screwdriver Totally 302pcs [Warm Tips]:contains small parts, keep away from children.