The spreader boots are made of soft white, synthetic rubber. Designed to fit around the shroud and end of the spreader to protect the sails. Moulded in a split form to make installation easy. Spreader end measures about 1” in diameter, will fit slightly smaller or larger spreaders. New, never installed. Compare with $40 plus new https://defender.ca/en_ca/taylor-made-rubber-spreader-boots?srsltid=AfmBOopLTYY9W-l5lmoVsMdaUkcAXtAdtdYMQWN4IOc09d1ZwGiHxgkX