Rectangular Glass Wind Guard is a tempered glass shield that sits on top of a fire table or fire pit, around the flame area. It reduces wind blowout on breezy evenings, keeps the flame standing upright, and puts a barrier between the flame and anyone sitting close to the table.The guard is rectangular. It is offered in 28 by 10 inch, 40 by 14 inch, and 52 by 18 inch sizes for linear fire tables. Measure the media area of your fire feature and choose the size that surrounds the burner and media with the guard resting on the tabletop. Shape: rectangular Sizes: 28 x 10 inch, 40 x 14 inch, and 52 x 18 inch Material: tempered glass Use: wind protection for gas fire tables and fire pits A wind guard changes how heat moves around the top of the fire feature, so read the enclosure and ventilation requirements before adding one to an installation.