Product details:

Double arms elastic safety tether for improving the safety during sailboat racing. Aluminum double-action safety hook, built-in stress indicator and stainless steel connectors with express sleeve for improved security offshore, whether racing or cruising. The boat-end aluminum safety hook has an easy-to-use double-action gate that automatically locks closed, so it wont accidentally release from attachment points. Certified for only one user. High quality, made in Italy.Brand:KONG
Model:283SETE01KK
Manufacturer:Kong