This is a Package of Eight 5/64" Tungsten Carbide Balls / from ACER Racing. / / FEATURES: Durable and resistant against wear, shock and impact / Carbide balls can last for race after race without being replaced / Each set of balls is matched for consistent concentricity / All balls are Grade 10 / / INCLUDES: Eight 5/64" diameter Tungsten Carbide Balls / / REQUIRES: Installation in differential / / SPECS: Diameter: 5/64" / / tlw 11/30/07 / ir/jxs