16mm blocks offer very high working loads in
an extremely small, lightweight block. These diminutive blocks feature a
patented bearing system using stainless balls in a captive, grooved race
and provide an honest 113kg (250lbs) safe working load.
They are perfect for the new, smaller
synthetic control lines found on high-tech dinghies and are the obvious
choice for competitive racers. The 404 uses an O-ring to keep the line
in the sheave during intermittent loading.