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Demonstrates the large electromagnetic power due to the flow of electric current. Consists of two parts, core and yoke, each fitted with a heavy, steel eyebolt. Generates a substantial amount of lifting power on account of high precision surface matching of core and yoke. Powered by two ‘AA’ batteries (not included), connected to the coil by crocodile clips. Battery holder mounted on top of core. Can lift to 145lbs/70kg. With instructions.