33mm diameter when mounted

Inner lining in 210D Nylon Ripstop 210D in high contrast fluorescent colour

but definitely not the lightest

No more stinky helmets

Jockey wheel tooth count (top/bottom): 12 T jockeys

Shokz OpenFit Pro True Wireless Earbuds - Black Ignore Wholesale Tier 2 Brand Rule 33mm diameter when mountedOpenFit Pro is the first Shokz headphone to feature Open Ear Noise Reduction. Powered by the latest Shokz SuperBoost ultra large driver and optimised for Dolby Atmos, OpenFit Pro delivers a listening experience that's unheard of. Features Superior, Cinematic Sound Shokz SuperBoost delivers rich detail, smooth highs, and deep lows, while Dolby Atmos plus head tracking create true to life audio that moves with you. A Balance of Awareness and Focus