Zhang Kong Competition Collars Overview Zhang Kong Competition Collars are built for professional Olympic weightlifting, providing a tight, balanced, and reliable lock during training or competition. Crafted to meet international standards, these collars ensure your setup stays stable through every lift. For athletes who need more high-performance options, explore our ZKC Weightlifting Collection, featuring training and competition-grade barbells and accessories. Key Features Professional Construction: Made from Q235 round steel for superior strength, durability, and precise sleeve compatibility. Secure Lock System: The reinforced tightening design holds plates firmly in place, preventing any shift or rotation during heavy lifts. Precision Weight Accuracy: Each collar is 2.5 kg, with a tolerance of ±0.25%, ensuring total barbell accuracy under IWF specifications. Durable Chrome Finish: The polished chrome-plated surface resists rust and wear, maintaining a clean and professional appearance even after years of use. Competition Standard: Complies fully with Olympic 50 mm sleeves and IWF requirements. Specifications Item Details Weight 2.5 kg × 2 pcs (pair) Thickness 65 mm Material Q235 Round Steel Outer Diameter 100 mm Inner Diameter 50 mm Tolerance ±0.25% Surface Treatment Chrome Plating Application Weightlifting / Competition
