Keep your headset jacks clean and free of dust! These dust plugs are made with silver-plated & handmade glass beads. All glass beads are crafted one at a time on my oxy-propane torch, properly annealed and thoroughly cleaned. This is a beautiful pair of charms. One has a light blue and a medium blue opalino bead, while the other has a light green and medium green opalino bead. Opalino glass has a luminous quality to it. It's not transparent or opaque, but somewhere in the middle. It can be a challenge to work with, but I love it!