Feature:1. VERSATILE: Ideal for printing paper, photos, cards on whiteboards, refrigerators, bulletin boards, posters, magnetic maps, calendars, lockers, filing cabinets and other magnetic surfaces. The magnet doesn't leave any dirt on your surfaces, and is easy to install or remove.2. UNIQUE STONE SHAPE: Made of premium magnet material with a beautiful rainbow color, heavy duty industrial grade magnets allow you to easily grip and attach to the whiteboard.3. PERMANENT MAGNETS: We use permanent magnets and strong magnets to achieve enhanced magnetic effects. Even if the wheel is forcefully rotated, the magnet will not fall off, and 3D objects can be easily constructed.4. FUN WAY TO PLAY: Put in hand, then throw them up and at each other. If they get close enough, they will attract each other and make a rattle and spin in the air. The ideal way to produce sound is to take high arc trajectories so that they rub against each other. If they hit each other too hard, they'll bouncing off each other.5. EASY CARRYING: Compact size and being light in weight make these magnets easy to carry to different places to use, convenient to carry.Specification:Item Type: Oval MagnetsMode: D60 x 18mmMaterial: MagnetMagnet Size: Approx. 60 x 18mm / 2.36 x 0.71inColor: Black .Package List:8 x MagnetNote:1. There may be slight error in size2. If you accidentally swallow or inhale magnets, seek medical attention immediately