ROYAL LANGNICKEL-Compact Art Engraving Magnets Kit. These compact kits come packed in CD cases and are ready to be used at home; camp; in the car; on the plane and just about anywhere else. These kits are available in a variety of themes and each contains fifteen magnets. Conforms to ASTM D4236. WARNING: Choking Hazard-small parts and functional sharp objects. Not for children under 3 years. Imported.