Angled board helps maintain correct, comfortable posture. Posturite Activity Board is ideal for people who have problems with back, neck or eye strain or who have cerebral palsy, arthritis or tendinitis. The adjustable writing board eliminates the need to lean down by bringing the writing surface up. Board will hold books weighing up to 3.6kg. Two sizes are available: Small (38cm x 39cm) and Regular (46cm x 56cm). Book holder sold separately.