The closed-end carabiner hooks are a great idea that I think make these much safer than the usual sharp ended metal hooks, so that the springing force of the stretchy cord cannot snap back and risk injury to an eye or other body part. Seems like it could be a bit more stretchy, but so far so good. As for durability, remains to be seen over time. The hooks are affixed by some sort of tape wrap, so it looks it will hold securely. The neon color is also good for safety, and I like that it is a 2 pack. They should make these in the smaller sizes, too.
Rating: [5 of 5 Stars!]