ISCA MastStandard class legal mast for the ISCA sailboat. Includes mast top cap and bottom cap. This is an official International Sunfish Class Association (ISCA) class approved fitting. Zim Sailing is the exclusive manufacturer and distributor of the ISCA Boat and Equipment. Boats and Equipment sold by Zim Sailing and it's dealers are legal for all class sanctioned events. Sunfish is a registered trademark of Velum Limited, under license to SERO Innovation,
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