Specifications include, but are not limited to: Union & Scale Essentials Fabric Drafting Stool Black (NER) Five 360-degree casters, Overall dimensions: 47.2"-52.7"H x 28.5"W x 28.6"D. Weight capacity rated up to 275 lbs. Stools can be assembled to be used with and without arms. Fixed arms to support the shoulders and upper body. Model #: UN59388 for reference; All chairs must be pre-assembled prior to delivery. The seller is responsible for ensuring that the chairs are ready for immediate use upon arrival. The total cost must include the price of the chairs, assembly costs, and shipping charges. The seller is expected to comply with all specifications outlined in this document to be considered for the contract. Failure to meet these requirements may result in disqualification from the bidding process. If an alternate is offered, bidder must state the brand name and model number of the alternate offered. Detailed literature on the alternate offered must accompany the bid. Failure to do so will invalidate the bid.