Clean Nut Rubber Encased Hex Dumbbell Pairs or Singles Overview Training with dumbbells allows you to select resistance training exercises based on their similarity to actual movements that occurs during sports. Dumbbells require more balance than training with barbells or machines, and balance is crucial for optimal performance. Choices （More options are on the way) Singles: 15LB x 1; 20LB x 1 Pairs: 15LB x 2; 20LB x 2 Features Multiple weights to choose from; Rubber encased; Hexagon shape heads; Contoured handles. Specifications Sold in both Singles and Pairs, please check the buy-box carefully before you check out Tolerance: +/- 3% Black Rubber Encased Hexagonal Heads w/ embossed weight indications on two sides Knurled Grip (knurl pattern may vary) All items are in NEW condition.