We have for sale these plastic protectors.
You can slide them on the strap by pushing the hook end through the hole.
You can then use these to protect your load from either tightening the ratchet too hard, or using it to protect corners of fragile items, amongst many other uses.
The size of this protector is: 195mm long, 87mm wide and 3mm thick.
The photos show the 2 sizes available.