Health Canada is warning Canadians of the serious danger posed by three magnet sets primarily sold online (photos below): NicoSee Wonder Hematite Rattlesnake Eggs by Maple Mall SpaceCare Hematite Magnetic Stone set by Safari Store Ruptop Magnetic Pen High-quality Innovative Gel Pen Finger Play Toy by Shenzhen MengLang Keji Youxian Gongsi (Inadvertently Spirits Décor) These sets contain small, powerful magnets that can be easily swallowed by children of all ages, posing serious and potentially life-threatening risks. When more than one powerful magnet is swallowed in a short period of time, the magnets can attract one another while moving through the intestines. This can cause the intestines to twist, creating blockages or tearing of the intestinal walls. Swallowing incidents have often resulted in considerable damage to gastrointestinal tissues and required emergency surgical treatment. For survivors, there can be long-term health consequences. To date, no incidents or injuries related to these products have been reported to Health Canada.