Everlast Free-Standing Heavy Bag High Density plastic base is easily filled with water or sand for stability Approx. 240 lbs. when filled with water High grade shock absorbing foam with nevatear outer layer for lasting durability Adjustable height up to 70" Easy to assemble! Freestanding, height-adjustable heavy bag with high-grade shock absorbing foam Nevatear layered matrix cover of synthetic leather and webbed vinyl for durability High-density plastic base fills with water or sand for stability Weighs approximately 240 pounds when filled with water Measures 70 inches tall at the highest setting