The robust construction of the Midrange series make them a good choice to handle the high loads found on medium and large offshore boats. Perfect for spinnaker sheet blocks on boats to 35 feet. Use them as mastbase halyard lead blocks, mainsheets, spinnaker sheets, and control lines on boats to 39 feet.
• Carbon-black Delrin® ball bearings
• High-load versions have Torlon® bearings
• Aluminum sheave versions accept wire
• Sheave diameter: 3"