HR Forged snap shackle (Grade 17.4 PH stainless steel)  with large eye. 
The large eye allows to attach several ropes. 
Free rotation of the snap shackle thanks to the swivel eye.
The plunger pin is set captive into the hook and cannot become detached. 
Excellent working and breaking loads. 
Easy to open by pulling the plunger pin (possiblity to attach a lanyard). 
Applications: 
Snap shackle applications.
Applications requiring a free rotation of the snap shackle (for a better sail orientation).