Mizuno T-Zoid Pro II. Manufactured from tour-proven mild carbon steel, the re-designed T-Zoid power bar spreads mass more evenly for better feel. Muscle cavity-back design to maximize both forgiveness and playability. U grooves produce ideal ball spin rate for maximum playability in all types of conditions. Feature a muscle cavity-back design to maximize both forgiveness and playability. Hugely popular with tour players around the world during the early 2000s.