The best sparring partner money can buy! A great partner for sparring techniques or target training. Sparring BOB is a full size lifelike mannequin. “Skin” is constructed of high-strength plastisol. Inner cavity is filled with high-density urethane foam. Base can be filled with water or sand and weighs approx. 270 lbs. 7 height adjustments from 60” to 78”. Gender: unisex. Age Group: adult.