Individual internal compartments can be filled with sand bags or similar weights, allowing you to customize the weight of your tire.Webbing around the center and outside for drags, tire deadlifts, and more.Maximum filled weight is approx. 120 lbs.Size: 40 W X 40 L X 12 T.Specifications Age Adult Bag Type Fitness Bag Bag Weight Variable Weight Brand Century Height > 35 in. Line Not Applicable Martial Arts Style Multiple Resistance Type Not Applicable Shape Circle Target Type Not Applicable Training Accessories Type Agility Weighted Gear Type Fitness Bag Search Synonyms dead lifts, foam tire, tire training, indoor tire, flip tire foam, variable weight, sand filled bag, agility, cardio, Caliesthenics, agility equipment, indoor equipment, customize bag,