[High-value set] Multi-color metal buttonhole set, including 10 colors of eyelets, namely white, shiny green, red, orange, purple, yellow, blue, dark blue, black and silver. There are 500 grommet rings. Each grommet ring consists of 2 parts: an eyelet and a gasket. The tool kit also comes with installation tools: 1 hole punch, 1 bottom punch, 1 mounting rod, 1 hammer. [Metal buttonhole size]: Approximately the outer diameter is about 9 mm (11/32 inches), the inner diameter is 5 mm (3/16 inches), and the barrel length is 3.5 mm (5/32 inches). The small size melts your heart, cute and stylish. [Easy to store] All 500 holes and installation tools are placed in a plastic transparent storage box with a movable baffle that can separate these compartments, so you don't have to worry about the holes It is inconvenient to store and mix together. The excellent packaging allows you to carry them easily, store them conveniently, and find the corresponding parts easily. [Easy to use]The installation is very simple. Step 1: Hit the punch with a hammer. : Pass the hole through the hole in the front of the object, and then place the gasket on the back of the hole. Step 3: Place the eyelet facing the base and place it on the base. Step 4: Place the mounting rod on the washer, and then hammer the hole and washer together. [Widely used] Widely used in DIY crafts items, shoes, tarpaulins, canvas, tents, clothing, awnings, leather crafts, bags, shoelaces, canvas and other DIY items. The eyelet kit is the perfect decoration to decorate your crafts. Fashion choice! Colour: multicolor Material: metal Package Contents: 1 set x 500 grommet kits Only the above package content, other products are not included. Note: Light 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.