Magnetic Mass Hook for Gravity Well

A magnetic mass hook, for use in conjunction with the Gravity Well, providing a fixed but removable location for a mass, without damaging the sheet surface. The magnetic hook comes with a steel disc, which is placed on top of the sheet in the required location, with the magnetic hook placed against the disc but on the underside of the sheet. The required mass (up to 1kg) can then be attached to the hook on the underside. You can use two magnetic mass hooks with the gravity well to model the warping of space-time by two celestial objects, e.g. the Earth and Moon; this allows for a captivating demonstration of a slingshot manoeuvre as used in the Apollo missions. The magnetic hook can also be used to attach to a steel surface, in which case up to 10kg mass can be attached (but only 1kg with the gravity well). Powder coated, 40mm dia. magnet with 50mm dia. steel disc.