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It is a mesmerizing kinetic motion toy that will dazzle onlookers with its endless spin. Is the science of perpetual motion captured right here in the form of this shiny silver top, spinning ceaselessly on its black base? One very long demonstration from the Top Secret Perpetual Spinning Top might indeed convince you that the answer is a resounding YES! Just one spin of the Top Secret Perpetual Spinning Top will set it off for hours on end or, in some cases, even for days! It is a great mystery to behold, watching it behave in such a way. Fascinate and confuse your friends as they struggle to comprehend how it works! They’ll gaze in awe as the Perpetual Spinning Top goes on and on, showing no signs of stopping and refusing to slow down. Requires one 9 volt battery -included- Size:8cm Learn More

Just use the marker and draw a line on paper, then set the tank on the line and it follows the line! Amazing is’t it? The tanks have an optical sensor that reads the black line drawn on a piece of paper. Simply draw a thick line that is at least a 0.3 inch thickness, place the tank on the drawn line and it will run on the line automatically. Put as many of these toy tanks on the track and they will not interfere with each other. Learn More

1. Use an ordinary dark colored crayon or marker to draw a line on a white piece of paper. 2. Turn on switch on the button of the car. 3. Place car on top of the drawn line. 4. The car will run on the line automatically. 5. If the line is finished, the tank will continue in the direction followed from the previous line. 6. If the line is too thin, the vehicle may stray off the line, please make the line thicker (the line should be a quarter inch thickness). Features: The car is powered by 4 x AG 13 button cell. Marker pen and batteries are included. The line: not under 4mm, not overrun 10mm, non sharp-angled line. Size: 6.6 x 4.5 x 4.3cm Weight: 142g Package contents: 1 x Fangle car 1 x Magic pen 1 x Instruction manual 1 x White paper with black lines Learn More