



The Basel Problem iPhone Case
Designed and sold by Bellassi
$36.11
$36.11
- Super-easy returnsProblem? No problem. We’ll fix it, fast.
Product features
- Double layer clip-on protective case with extra durability
- Impact resistant polycarbonate shell and shock absorbing inner TPU liner
- Super-bright colors embedded directly into the case
- Secure fit with design wrapping around side of the case and full access to ports
- Compatible with Qi-standard wireless charging
- iPhone SE (2020) / iPhone 8 cases also fit iPhone SE (2022)
- Weight 30g
- Thickness 1/8 inch (3mm)
- Since every item is made just for you by your local third-party fulfiller, there may be slight variances in the product received

The Basel Problem
bold tribute to pure mathematical beauty — this glowing design showcases Euler’s famous solution to the Basel Problem: ∑(1/n²) = π²/6.
Rendered in electrifying neon turquoise, purple, and gold, the equation radiates energy as mathematical symbols orbit around it like sparks of logic. It’s chaotic, intense, and deeply satisfying — just like real mathematics.
Perfect for math lovers, physicists, and anyone who finds elegance in infinity. A piece that speaks the universal language of numbers — loud, bright, and brilliant.
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