while the special back panel and adjustable rear strap keep the collar off the neck and distribute weight optimally

This is a mechanical fitting kit from Lewmar

Operating limits: Seawater winter mode < +40°C/+104°F

MPN: CM16B

Facnor, standard kause, Ø10 mm (25200010110) Udsolgt while the special back panelThe FX+ system is ideal for optimal reefing of gennakers, code 0, or asymmetrical spinnakers. The professional bearings ensure easy operation even under high load. Optionally available: Anti Twist line, aluminum thimbles, snapshackle, and halyard blocks (2: 1) Specifications Brand: Facnor Item no.: 68700639 EAN: 8711497633566 MPN: 25200010110 Packaging unit: 1 pcs