• Stainless steel frame is robust and looks good longer than competitors' aluminum and plastic frame blocks
• Three 1/4" bolts mean fewer holes in the deck than the typical four 3/16" bolt pattern with similar strength
• Anodized aluminum sheaves won't self destruct in the sun like plastic sheaves
• Same mounting hole spacing as original Catalina supplied blocks so you don't have to drill new holes
• Six large sheaves with ball bearings turn freely with minimum friction

Suitable for halyards and control lines on:
• Catalina 34
• Catalina 36
• Catalina 42

• Frame size: 8" x 2" x 1-1/2"
• Sheave diameter: 2"
• Mounting fastener spacing: 2-3/8"
• Mounting fastener diameter: 1/4"