Features:Easy to take and endurable in use.Made of superb 304 stainless steel material, it is long-lasting.A variety of sizes to suit your needsit can be used for a multitude of tasks including for use in machinery, furniture, and car repair.The bolts and nuts are flush or below surface to provide you a nice finish.440pcs in various sizes to suit your needs and they come in a assorted transparent reusable box for easy carrying.