ALLboards Neodymium Magnets Set of 6 Pawn White, Durable Strong High Magnetic Attraction, for Glass Boards

SIZE:19x25mm Neodymium magnets are designed for glass magnetic boards due to their high magnetic power. Using too strong neodymium magnets (large) may damage the whiteboard. Connecting and disconnecting magnets should be done by sliding and sliding. IMPORTANT Neodymium magnets are not intended for use with magnetic boards with varnished or ceramic surface - they may damage the surface. Neodymium magnets are not intended to be played with by children. Due to their strength, fingers or skin damage may occur. In addition, due to their size, they can be easily swallowed by a child. Neodymium magnets are very brittle, so be careful when connecting them together. Keep magnets away from electronic devices as it may cause permanent damage to them, e.g. USB sticks, hard drives, mobile phones.