Delivering HD LED image with no shadows or glare, 65 in. SMART Board 4065 and 55 in. SMART Board 4055 include Silktouch™ technology, offering virtually frictionless glass surface for accurate multi-touch experience that supports gestures and multiple simultaneous users. Providing crisp, clear 4K Ultra HD image with no shadows or glare, 55 in. SMART Board 6055 also includes Object awareness™ ability, which detects if student is using finger, pen, fist, or eraser.