Engine Connecting Rod Balance Checking Tool 2 Rod Roller Style ProformHere is the quick and dirty way to match weigh your small block Chevy connecting rods! Simply put two connecting rods on the roller, even them out, and set the roller on the base. You'll quickly determine if your rods are balanced, and if not, which one is heavier. Sold individually. Product Details: Engine Connecting Rod Balance Checking Tool 2 Rod Roller Style Sold As Each