Bought a beautiful 57" wind chime off Amazon that came with a cheap and light sail - not sure what material it was, but it would fly around in the wind, hopping about and not causing the striker to hit the chimes - after ordering this product off the American website, it came within 2 weeks and is the perfect replacement. Now it hangs the string much heavier and helps the striker hit the chimes so it strikes more often, especially in lighter breeze.
Looks good too but is pretty massive so make sure your chimes are large, otherwise it will look out of place. Definitely built to last.