1、Free to adjust, can be light or heavy, anti‑slip arc shaped handle, not easy to slide. 2、Safety in use, secure and elastic water filling, both old and young children can use it. 3、New generation of PPC material,healthy and environmental protection, no objectional odor. 4、Small size, easy to store, can be carried around,convenient to use. 5、Benefits of using dumbbells, for shaping, fitness, arm muscle training, increase strength or become healthy.  4 x Dumbbell Bag 2 x Dumbbell Rod 8 x Nut Condition: 100% Brand NewItem Type: Water Filled DumbbellMaterial: PPCOptional Color: Blue 8‑10KG  Dumbbell, Black 8‑10KG  DumbbellSingle Bag Filling Water to 3/5 Full Weight: Approx.1550g/ 54.7ozSingle Bag Filling Water to 4/5 Full Weight: Approx. 2250g/ 79.4ozFree to Adjust, Can Be Light or Heavy