This Stadium Seat Comes with an Unique Bar Underneath the Chair that Helps Avoid Tipping. PLUS: Unique Side Armrests Add Comfort, Support and Style. Extra Foam Padding was Added for Hours and Hours of Sitting Comfort!Feel the difference with our innovative Padded Arm Support and Extra Cushioning in the Seat & Back! Plus: it comes with our "Non-Tip" Support Bar under the Seat that gives Added Stability and hooks onto the bench (this is added stability that many other chairs do not offer!).Two Foam Padded Arm Rests and an Extra Layer of Soft Foam Cushioning make the Earth Pro Stadium Seat one of the most comfortable stadium seats on the market. Durable steel frame construction and tough fabric make our Pro Stadium Chair the best at any game! Fits all metal or wooden bleachers and has a unique bar underneath that "hooks" to the bench, providing improved back support (this "Non-Tip" bar keeps the seat from tipping backwards). It is designed to fit virtually any type of bleacher, old or new, wood or aluminum. The Earth Pro Stadium Chair is the most comfortable, versatile, and best-looking bleacher seat / stadium seat on the market. Outstanding construction consists of a powder-coat painted tubular steel frame, covered with a fade-resistant and mildew-resistant, easy-cleaning fabric cover. Built for mobility, it"s easy to carry to any event Use your Stadium Chair for more than just the bleachers... also works great at any outdoor event and can even be used just on flat ground!