Really useful and nice to know my surfboards will not be easily stolen by an opportunist thief. The reason I only give 4 stars is the quality of the key and lock barrel. The straps are very solid, the lock ratchet is clearly good quality but the key is very flimsy. It is very easy to bend. The lock barrel is snatchy and needed a good squirt of PTFE lubricant to smooth it out. The price is for a premium product but one "key part" of it is far from premium. But it is very good, with a simple and effective design. To the best of my knowledge, it has no direct competition.
VERY handy to secure my soft luggage roll (and a back pack) onto the Harley rear fender rack during a 2,000-mile 2-week trip through the Pyrenees; straps are appropriately thick (e.g. strong) and a good width, and the lockable latch gave me peace of mind if I left the packed-up bike to walk around a town I was visiting; straps were a good length, too (I got the 2.5m-long 'green' ones for my FXDF); very happy with these! Every touring biker (without hard saddle bags) should have a pair!
These straps are top quality and I am very pleased with them. As I spend quite a bit of time at the beach it is wise to lubricate the locking mechanism occasionally. Do that and these straps will last for years.