Use this highly visible Lamba yellow four-sided floor safety cone at the front entrance of your office to alert visitors wearing a face mask is required. The 36" square cone has a 12" base, 6" middle and 3.5"top. The caution cone is light weight and easily moveable and transported and stackable for easy storage. Remind your employees, patients and or staff to wear the required face mask to follow all safety standards and health protocols.