Office chairs on crosspiece with rollers

Cross with rollers

— star-like design, with 5-6 "rays" coming out of one point; at the end of each beam is a transport roller. Actually, the presence of rollers determines both the advantages and disadvantages of this option: the chair can be easily moved from place to place, however, in some cases (for example, in models for visitors), such a possibility is unnecessary, and even dangerous.