Engineering grade thermoplastic body with heat treated CNC machined chromoly axleLSL bushing and sealed bearings for smooth operationFiberglass reinforced thermoplastic binding with enclosed mechanism, tension adjustable with gaugeEPS / Delta Look compatible cleat interface294g per pair9/16`LSL/Sealed Cart.BlackLook DeltaAlloy/CompositeUPC/EAN/GTIN: 190534016728