This ″Bazooka″ in-ground umbrella base accommodates 1 1/2″ diameter umbrella pole. Made with stainless steel parts and features a locking plate and latch. This umbrella base is unique as the sleeve can be removed for safety reasons. The 5″ diameter plate is rounded on the corners and low to the ground to prevent harmful tripping. This base can be used on concrete, soil, and on a deck.