These are CarbonBird® 300mm double thickness (for Octa or quadOcta or for YSiix co-axial engine) booms
Carbon Scarab Crash Kit "Y6"coaxial booms set of 4 - Includes
4 x 100% Genuine Carbon CarbonBird® - 12/10mm 300mm Length
NOTE: Because the inside diameter is 10mm they will not accept regular inserts (11mm) without sand down the inserts
All crashes are avoidable through discipline and training. Minimise your risk.