Operating our electric patient lifts is easy with its hand control and battery charging features. You can also widen and narrow the base by pulling the adjustment handle back to unlock, right to widen and left to narrow the base.Sling is included in rental price. About the product Weight Capacity: 400 lbs Boom Height (Sling Hookup): 24"-74" Under Bed Clearance: 4.5" Base Length: 48" Base Width: 41" (open) | 26" (closed) The item may come in a folding configuration or non-folding configuration depending on availability.