True monocoque carbon tubes (no glue used to fuse 2 halves), tube diameters ranging from 25mm (Carbon E3 slim) to 29mm (E3 Carbon Slalom). Combined with tube section offering maximum stiffness and comfort due to the ovoid shape, arm grip strength required is reduced allowing for longer sessions.
All backends are also entirely molded, no post fabrication drilling for locking pin holes, adding stiffness and durability.

E3 slalom booms are sold with standard width tail. Wide tail is extra.