Taski Ultimaxx 1900 20 in Auto Scrubber Safety while the magnetic bars are 729004 while the magnetic bars are strong and safe Adjustable Back Height: No Adjustable Height Maximum (Inches): 47 Adjustable Height Minimum (Inches): 44 Adjustable Tilt Angle: Yes Arm Style: Fixed Arms Arm Type: Fixed Assembly Information: Partial Assembly Required Back Width (Inches): 21 Base Material: Chrome Brand Name: Flash Furniture Chair Base Type: Casters Chair Center Tilt: Yes Chair Lumbar Support: Fixed Chair Synchro Tilt: No Color Family: Black Depth in Inches: 32 Ergonomic: Ergonomic Furnishing Material: Faux Leather Height in Inches: 47 Locking Tilt: Yes Maximum Seat Height (Inches): 23 The Taski Ultimaxx 1900 offers a new level of modularity Customize the machine for the intended cleaning process with the flexible selection of working width and brush decks