Instruction BALLS: Made to help players of all ability amounts get on the court and follow their ball-putting and shot-producing skillsHealthy Your Displays and Desks- Just about every arm can fit 13 to 30 inches flat/curved monitors with Vesa sample 75x75 and 100x100; Each arm retains 4.4lbs to 19.8lbs. About the desk, we recommend picket desktops