Designed for exacting fit on the J80 aluminum mast section. Generous tunnel for control lines running along base of mast.

Affixed with standard Vakaros-supplied mast slug or MadMounts-supplied Velcro® strap; along with supplied Harken® non-skid, to prevent slippage.

Carbon Fiber Nylon material option provides lower weight and increased stiffness. (+$30 USD)