BUTTERNUT KIT: Our butterfly wing nut set meets your various DIY/repair needs. This kit includes 100 pieces, including 30 x M3 nuts, 25 x M4 nuts, 20 x M5 nuts, 10 x M6 nuts, 10 x M8 wing nuts, and 5 x M10 nuts. The wing nuts are made of very hard 304 stainless steel, resistant to rust and corrosion. They are durable and reusable and can be used both indoors and outdoors. PLASTIC STORAGE BOX: The nuts come in a non-toxic plastic storage box. The box is lightweight for travel and organizes each wing nut by size. This prevents the pieces from getting lost or mixed up. Our durable nuts are smooth and clean. We recommend cleaning them before each use to prevent slippage. You can use this set daily at home or in industrial workplaces. EASY INSTALLATION: This type of wing nut is quick and easy to install. They are useful in places where fasteners are frequently changed or for regular disassembly/reassembly. The wings allow you to tighten the nut by hand. No tools are required. These parts