the bud jones 24 line chips also get infected.maybe because their vinyl or pvc or some other soft plastic.if you look at the chips below the borgata chips the 3 on the second row have red inlays ,when new they were white top 2. the 3 hilton chips are all lt blue but #10 was in a rack next to a yellow chip. #3 was next a different color chip also. even violet will change #4 between b of borgata and r of roulette plus the right sige edge of inlay.