Thumb Score: +18 Walmart [walmart.com] has 55-Pound Pair BalanceFrom Olympic Bumper Weight Plates (Colored) on sale for $71.66. Shipping is free w/ Walmart+ (free trial available [walmart.com]) or on orders $35+. Note: additional weight plates are on sale as well. About this item:[LIST][*]2″ inner ring diameter for compatibility with Olympic barbells[*]Total diameter of 17.75″ for…