360 sets of size T5 Kam snap buttons (720 caps, 360 sockets, 360 studs) in 15 assorted colors, with 24 sets per color. The kit also includes a complete tool set: pliers, awl, screwdriver, rubber pressing heads, shanks, and die trays. Kam snaps size 20 (T5) is the commonly used size. Cap diameter is approximately 12.3 mm (about 1/2 inch) and prong length is about 5.6 mm (about 1/5 inch). For firsttime use or if you are practicing, start with an unwanted cloth to get comfortable with the process. quality and performance: Kam snaps are made from ‑grade ecofriendly resin that is bright, tough, durable, and lead. They are machine washable and dryable, and will not melt or become brittle when exposed to boiling water. Easy to use: Instructions are included in the package. To install, position the cap and the male button and press with Kam snap pliers, then repeat for the female button. A distinct pop signals that the installation is complete. You can also search YouTube for how to snap if you need a quick visual guide. Applications and use scenarios: Clothing alterations and repairs: add or snaps on jeans, jackets, shirts, or children's wear. Accessories and bags: upgrade or backpacks, purses, wallets, or camera bags with secure closures. DIY projects and crafts: create quickrelease fasteners for costumes, pet accessories, or hobby projects. Key benefits: Large color selection and ample quantity for multiproject use. Reliable, durable snaps with a secure snap fit suitable for frequent washing. Clear size specifications (T5, 12.3 mm cap, 5.6 mm prong) and easy installation process.