Glue-on necklace tubes allow you to eliminate bails, jump rings, drillings, and punched holes from your jewelry designs, which can be especially important when using cording that easily frays, or when you need a durable metal center to a large handmade pendant. Attach your focal piece by embedding these necklace tubes into handmade polymer clay and resin pendants, or gluing directly to the back of your focal piece.