For those of you who might purchase chain from MrChain.com pease be a advised that 2 out of the 19 colors they offer contain heavy metals for extra fade protection. These heavy metals are only in the 'Safety Orange' and 'Safety Green' colors. I was told that the 17 other colors they carry do not. I am not sure if these heavy metals are toxic to our gliders but I'm assuming that if they chew it, it's probably not healthy.
Better safe than sorry. These two colors should probably not be used in toymaking. ;)