GRP and wood

Adjustment buckle at back

Then spread

Colour retention (ISO 105 B02) - Note 4 and better

and is safe for gelcoat

Harken 45mm Aluminum Element Fiddle Block — Swivel, Becket, Cam Cleat 6234 cam cleat GRP and woodElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Elements design pairs the minimum amount of metal required to protect the sheave with a proven journal bearing. So size for size, Element is priced significantly lower, than our previously least expensive blocks. Sideplates are hardcoat anodized to resist corrosion. A tough composite bearing sheave