While the shackle is usable, if you want a shackle which needs to perform in a high strain application, spend a little extra on stainless steel shackles.
* around the garden/home is fine
* as cheap as they come
* galvanised, not stainless steel
* doesn't feel like a high quality product and so the manufacture tolerances are higher than I would accept (ie the shackle's pin doesn't fit perfectly)
For those reading this review, I would suggest looking at purplemarine com for stainless steel shackles until amazon list better shackles. I ordered snap shackles form purplemarine and they arrived with the speed amazon impresses with.