10 per bag 2 3/10" x 4/5" x 3/5" (5.8 cm x 2.0 cm x 1.5 cm) Super ClikMagnets are extra strong magnets supporting up to 10 lbs.* (4 kg*) each. Designed for hanging signs, fabric and larger items, they now feature double rings. The upper ring fits securely on the MagMover post. The larger bottom ring allows thicker tether lines to be used, and makes removal from the ceiling easier. *Note: Actual magnet strength depends on the type and surface treatment of the ceiling metal. If the ceiling is rough or covered with layers of paint, the magnetic attraction will be reduced (it's always a good idea to test the surface in advance).