Material: Grade 5 Titanium (GR5) Perfect lanyard bead for your zipper, backpack or pocket knife Length: 13mm, Inner diameter: 5.5mm, Outer diameter: 10mm You won't feel it when attach on your knife lanyard or keychain. Package: 2 piece beeds Original Design : The surface is colored by high-temperature flame, Their color is difficult to control, so each bead is unique. we will send by Random. beads are made from titanium with lightweight, high strength, corrosion resistance and high thermal stability. It will add unique taste and style to your backpack, knife or other types of 550 paracord projects such a keychain, knife lanyard, necklace, etc. Of course, it can also be used as beard hair dreadlocks bead! Don't hesitate to add it to your collection. Specifications: Material: Titanium Alloy TC4 (Gr5) Dimension: 0.511" x 0.393" (13 x 10mm) (Diameter x Length) Hole Diameter: 0.216" (5.5mm) Net Weight: 0.07oz/pcs