After 3 years on my Grand Slam Supreme, the shrink tubbing started coming off. I went to and electrical contractor supply store, bought some 1" shrink tubbing and re-shrink tubed the chains myself with a propane tourch. It cost $8 to do both chains. Just trim off the excess tears on the old shrink wrap and slide the new tubbing right over it. Heat up one of the pins with the torch and poke hole in the tubbing where you want them. Pretty easy.