Pls look at the picture to see detail size, this is neither big nor small quick link spring hook
Overall size: 1.96"*0.98",inner size: 1.18"*0.55",you could view our picture about the size details
M5 means the stainless steel pin diameter is 5mm(0.19"),suggest working load limit: 300lbs(136KG)
Material: 304 stainless steel
We also supply large size stronger quick link hooks,they are M6 and M8,you could find from our amazon store
Pls pay attention to size and load limit before you purchase
design with screw to make connection firm and stable
Quick links for chains,belt,cord,rope,wire,normally used on backpack,chains,collars and so on

Package include:
8pcs 304 stainless steel M5 quick link hook ring