and Long lasting Crafted from brass,these knurled are,ensuring over time. Versatile Assortment This set includes 330pcs of threaded inserts in various sizes,providing a wide selection for different bore and thread requirements. Suitable for Projects Whether you enjoy projects or need fasteners for your home improvement tasks,these knurled are perfect for reinforcing 3D printed parts or securing materials. Wide Ranges of Applications These knurled can be embedded in various plastics,making suitable for a ranges of applications improvement and hardware projects. Convenient Storage and Easy to Use The threaded inserts come in a labeled box for organized storage and easy access.With their precise threads,they can be easily installed into tapered holes,providing a hassle frees and efficient.