Large 10/18/20/25/30mm Buckyballs Magnetic Balls Toy

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The Large 10/18/20/25/30mm Black Magnetic Balls Buckyballs are the “big brothers” of classic buckyballs—chunkier, heavier and way more satisfying to snap together.

Each set uses **N30-grade NdFeB rare earth magnets**, offering strong magnetic pull, high coercivity and stable performance. You can choose between **10mm** and **30mm** diameter balls: both feel noticeably larger than the standard 5mm size, giving you more impact with every click and cluster.

Whether you’re building **3D structures, geometric shapes, or abstract desk sculptures**, these larger balls make every build feel more solid and “premium.” They also double as a seriously addictive fidget tool—split the cluster, let it snap back together, repeat until your stress calms down.

• 🧲 Large 10/18/20/25/30mm  sizes: bigger than standard buckyballs for a more substantial in-hand feel.
• 💪 N30 NdFeB material: strong rare earth magnets with reliable magnetic performance.
• 🧱 Creative building: design towers, patterns, spheres and mini sculptures on your desk.
• 🧠 Spatial imagination: helps train 3D thinking and creativity while you play.
• 😌 Stress relief: perfect for fidgeting, desk breaks and decompressing between tasks.

Whether you’re a magnet fan, a desk-toy addict, or just love having something tactile to play with during calls, these **large nickel magnetic balls** will quickly become your new favorite distraction.

Important Safety Note: These are small, strong magnets. Not suitable for children under 6. Children under 14 should be accompanied by adults when using them.

• Product Name: Large 10/18/20/25/30mm Black Magnetic Balls Buckyballs
• Color: Black
• Size Options: 10/18/20/25/30mm diameter
• Material: NdFeB rare earth magnets
• Magnet Grade: N30
• Pieces per Set: 10mm (36pcs) / 18mm (16pcs) / 20mm/(12pcs) / 25mm/(10pcs) / 30mm/(9pcs)
• Working Temperature: Up to about 80°C (176°F)
• Recommended Age: Above 14 years old
• Functions: Stress relief, desk fidgeting, 3D building, spatial imagination training, decoration
• Package: Gift box
• Category: Toys & Games > Toys > Office Toys / Desk Toys

*Due to strong magnetism, avoid swallowing and keep away from small children and electronic devices.

Q: How are these different from regular 5mm buckyballs?

A: These are larger balls, which feel heavier, snap together with more force, and are easier to handle for bigger builds and stronger tactile feedback.

Q: What magnet grade are they?

A: They are made from N30 NdFeB rare earth magnets, providing strong magnetism and stable performance for everyday building and fidgeting.

Q: Are they safe for children?

A: Due to small size and strong magnetism, they are not suitable for kids under 6. Children under 14 should use them only with adult supervision.

Q: What can I build with these magnetic balls?

A: You can build **geometric shapes, towers, chains, spheres, and abstract 3D sculptures**—or simply use them as a stress-relief cluster on your desk.

Q: Do they help with stress or focus?

A: Yes. Many users find that manipulating and building with magnetic balls helps **relieve stress, calm the mind and support focus** during work or study sessions.

Q: Do they come with a box?

A: Yes. The set is packaged in a gift bag, making it convenient to store and also suitable for gifting.