Equiplite spinnaker blocks are similar in design to Equiplite floating jib blocks. They employ wide Acetal sheaves to pass two sheets for peeling spinnakers under load. They have molded, carbon composite side plates with low friction polymer bearings.
The high-load versions have aluminum sheaves and high-load polymer bearings for unparalleled loaded friction efficiency. They are virtually impact- and wear-resistant and weigh 75% less than other blocks with the same breaking load.