1. small size
2. good quality
3. welding on the frame
We think the qulik lock is pretty special because it is very fast to lock and unlock and has no loose parts to lose and drop.
Please look at our general flip pins used in scaffolding frame, look at following:
This type of flip pins are used on the masonary frame, you have easily seen in the Canada makert.
And contact me to further more details including price.