PROVIDES BALANCE AND SUPPORT: Able Life’s ergonomic safety handle provides balance and support when sitting and standing from your favorite couch, lift chair, or recliner; the mobility handle supports up to 250 pounds; safety handle measures 6 by 6 inches

BAMBOO TRAY TABLE: Our multi-use TV and computer table measures 16 by 18 inches and includes a built-in cup holder and utensil compartment; with 360 degrees of swivel motion, pivot the lap desk out of the way when not in use; supports 30 pounds

EASY TO ASSEMBLE: Install the sofa desk under the feet of most four legged lift chairs or recliners with feet 20 to 36 inches apart; each tray includes all the needed equipment for assembly, no additional tools required; not intended for freestanding use.Base Feet Measurements: 4 x 7 inches

SUPER GRIP STABILITY PADS: The dual sided rubber pads can be adjusted to fit the distance between the front and back legs of your furniture and will protect your floor from damage; furniture feet can be placed on either the outside or inside of the pads

FULLY ADJUSTABLE: Tray table height adjusts from 26 to 32 inches; support handle height adjusts from 34 to 40 inches; base length adjusts from 20 to 36 inches; reference our video and images to determine if the Able Tray is compatible with your furniture.

If you look this up on Amazon there are 3 videos you can watch to explain how this works 

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