24.21" H x 48" W Back Board only

This bundle set is the perfect addition to your KOWO K305 standing desk. It includes 1 large under-desk drawer and 1 freestanding desk top shelf for extra storage space and a more organized home office setup. Large Storage Drawer: This spacious drawer can easily store all your computer gadgets and laptop. A divider compartment keeps all your office supplies and stationary in a tidy manner. Desktop Organizer: The wooden shelf design is a perfect way to organize your phones and tablet devices. You can remove the middle piece of the shelf unit to provide more space for your monitor and laptop. Easy Assembly: Simply find the reserved holes on your desk and put screws in. You don't have to worry about finding a drill to make extra holes because everything is already taken care of for you.