s large gyroscope challenges the force of gravity remaining balanced in any position, on a stand, a finger, a cord and even on a tip of a ball point pen. it has a 68.5 mm diameter rotator and It also features a 5 LED lights, requires LR44 battery, supplied and includes a winding cord. Dimensions: 7.5 x 7.5 x 7.7cm. Suits ages 6 years plus. Features: It remains balanced in any position, on a stand, a finger, a cord and even on a tip of a ball point pen It challenges the force of gravity It has a 68.5 mm diameter rotator It also features 5 LED lights And also includes a winding cord Requires LR44 battery, supplied Suits ages 6 years + Specifications: Dimensions: H:7.0 x W:8.0 x D:13.5 cm Colour: Red Guarantee:N/A Material: Metal And Plastic Model Number: 6050RED