IRIS-XL The Iris-XL headset is for those guys who need a little extra beef in their headset. The XL is just that. They're CNC-machined from 6061-T6 heat-treated aluminum and features extra large cups to house the 46mm diameter 5.5mm thick Japanese industrial bearings specially designed to take heavier loads. These 1-1/8" threadless cups are structurally enhanced by sand blasting and then anodized FireEye's black, silver, or orange. Lastly, they're laser engraved for that finishing touch. Sorry, Iris XL is not available in the USA . Material: aluminum 6061-T6 Diameter: 1-1/8" Color: black / silver / orange Weight: 185g Surface finish: sand-blasted and anodized Manufacturing process: full CNC-machined Logo: all lasered logo