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The HÅG Conventio Wing series is a range of lightweight, self-stabilizing chairs, perfect for easy setup, stacking, and flexible seating arrangements. The HÅG Conventio Wing 9831, 9821, and 9811 models can be stacked up to fifteen chairs high and feature removable seat and backrest covers, along with HÅG inBalance® technology, which promotes natural, subconscious movement for enhanced comfort over time. Optional armrests and the HÅG Writing Tablet are available for added functionality. The HÅG Conventio Wing 9832, 9822, and 9812 models come with a stable five-star footbase in either plastic or aluminum, a 150 mm gas lift, and back attachments available in matt black or silver. Like the stackable models, these chairs include HÅG inBalance® technology for dynamic comfort and offer optional armrests to suit user preferences.