The glass-filled nylon frame lends strength to these featherweight thread clips weighing only 1/2 ounce. Stainless steel blades are welded into place. This model has very sharp points which are useful for pulling threads and reaching into tight spots for thread cutting. The protective cap allows safe carrying in purse, pocket, or luggage and safe stowage in your sewing basket. The cap is fitted with a loop to enable the user to attach a ribbon for hanging this indispensable tool around the neck while working. You may like these clips so much that you want more than one around your house. This is also a great item for cutting fishing line and fly-tying.