Thank you for viewing. No box or manual, receiver included. Experience an unimaginable level of control with the 52mm diameter large trackball! The "HUGE" wireless trackball mouse, featuring an ergonomic design for index finger and middle finger operation, is equipped with a palm rest to reduce wrist strain during long hours of PC work. - Colors: Black, Red - Type: Trackball - Shape: Ergonomic Design - Number of Buttons: Multiple buttons - Material: Plastic