Jarvis Standing Desk Frame Only - Electric Adjustable Height Sit Stand Desk - 3-Stage Extended Range Frame with Memory Preset Handset Controller - Desk Top Not Included (Alloy, Extended Range) Height adjustable desk frame from 23.25" to 49.25" Sit-stand desk frame supports 350lb lifting capacity with quiet motorized 1.5" per second height adjustment Supports table tops from 44" - 82" wide and 24" - 36" deep with telescoping crossbar (top not included) Digital display handset with 4 memory preset options for easy adjustment Industry-leading 7 year warranty on all frame, mechanical, and electrical components