Tip N' Roll Bleachers are perfect for tennis facilities that host events on an infrequent basis. This model seats 30 and features 3 rows of 15' long bleachers with double wide foot rests. The Tip N' Roll Bleacher easily tips up on its casters for convenient storage when not in use. The bleacher frames are 100% welded aluminum. The Tip N' Roll Bleacher features high grade swivel casters and rubber foot pads. These bleachers meet the requirements and standards outlined by the National Fire Protection Association & the Consumer Products Safety Commission. Warning: These lightweight units are easily tipped up for rolling by any responsible adult. However, if tipped up outdoors, extreme caution should be taken.