Body-Solid Rubber Grip Olympic Plates surpass competitor's weight plates in quality, accuracy, reliability and cost. Quad-grip design guarantees safer and easier performance. Encased in durable, heavy-duty rubber to prevent scuffing or damage to equipment, walls or floors. These plates have a 2 inch diameter hole and feature an integrated metal sleeve providing a smooth, secure fit onto any Olympic barbell. Sold Individually There may be a small variance in the actual weights of dumbbells and weight plates. Tolerance is +/-3% when weight is greater than 9 Kg. Tolerance is +/-5% when weight is under 9 Kg. Features and Specifications Quad-grip design Encased in heavy impact-resistant rubber Impervious to rusting, chipping, flaking or losing their color Metal sleeve provides a secure fit onto any Olympic bar 2" diameter hole for all Olympic style barbells Sold individually There may be a small variance in the actual weights of dumbbells and weight plates. Tolerance is +/-3% when weight is greater than 9 Kg. Tolerance is +/-5% when weight is under 9 Kg.