I got mine today, and i love them, I need to wear 2 pairs of gloves or the metal cuts into my hands.BUT 2 of the spikes fell out during climbing.
I purchased 2 moon stars, and one 4 point star. Even unsharpened the moon stars stick into trees wood and such. But I can't get my 4 point star to stick. But it's really nice for decoration. YOU SHOULD BY THESE AWESOME STARS!