Individual leg holders lock your tripod securely in place and adjust to allow the use of virtually any size tripod. Oversized 3" (74mm) rubber wheels provide smooth rolling action, and individual wheel locks secure tripod in place. Folds for easy carrying. Handy carry strap included. Legs are all metal construction. Opens to 19.4" (49cm), folds to 21 x 3.6 x 5.6" (53 x 9.5 x 14.5cm) and weighs 7.7 lbs. (3.5kg).