Slotted Masses Set- Zinc Casted 100gm. Hanger-EIS-PHZNW100H offers a thoughtfully designed, durable resource for hands-on learning. HANGER ONLY || 100g hanger designed for use with slotted mass sets ZINC CASTED || Die-cast in zinc and powder-coated to ensure durability and long life ECONOMICAL || A great financially-friendly alternative to expensive brass hangers ACCURATE || Hanger has a ±2% accuracy FOR 10G MASSES || Serves as a foundation for any set of 10g slotted masses This 100g zinc casted hanger is powder coated for durability and serves as the foundation for any set of 10g slotted masses. With a ±2% accuracy, it is an excellent alternate for expensive brass weights.