3mm
A : Opening gap - 4mm 
B : Thickness - 3mm
C : Overall height - 30mm
Internal diameter of the hook - 8.5mm
Marine grade
A4 316 Stainless Steel Polished

4mm
A : Opening gap - 6mm 
B : Thickness - 4mm
C : Overall height - 40mm
Internal diameter of the hook - 14,5mm
Marine grade
A4 316 Stainless Steel Polished

5mm
A : Opening gap - 7mm 
B : Thickness - 5mm
C : Overall height - 40mm
Marine grade
A4 316 Stainless Steel Polished