No assembly required The mast of the table pivots and can be locked in onof the 3 positions from flat on the floor to 90 degrees The pivot feature allows the table top to be positioned closer to individuals in a bed sitting in a wheelchair or folded for storage The table top tilts with the angle of the mast 4(ea) 2 casters (2 locking) Color: grey table top black frame Dimensions: Table top 23.5 W x 15.75 D Height adjusts: 28 - 37 Base measures 25 x 25 Limited Lifetime Warranty