Heathrow Scientific Test Tube Rack, 24.5 x 10.5 x 6.3 Centimeter, 1 Each Opthalmoscopes Heads They contain a hint of energy and water costs They contain a hint of aloe to soothe the skin DETACHABLE DESK ARMS * 20 With Elevating Leg Rests *Adjustable seat rail extension and extendable upholstery easily adjusts seat depth from 16 to 18 (patent pending) * Removable flip back desk arms allow for easy transfer * New frame style eliminates seat guides and allows for custom back inserts and accessories * Tool free adjustable front riggings (footrests legrests) * Composite Mag style wheels are lightweight and maintenance free * Precision sealed wheel bearings ensure long lasting performance and reliability * Dual axle provides easy transition of seat height to hemi level * Desk arms are detachable * 8 front casters are adjustable in 3 positions * Push to lock wheel locks * Overall height: 35 * Seat to floor height: 17 just fold and snap together Well diameter is 16 millimeters