Titanium Headset Space

• Material: 6AL/4V(TC4)Titanium Alloy,Grade 5

•  Outer Diameter:31.8mm/1.25inch
• Inner diameter:28.6mm/1.128inch ;Thickness:1.7mm
• Weight: About 27g/set
• Package Content :1 x 5mm, 1x 10mm, 1 x 15mm , 1x 20mm 1x 25mm  1x30mm