Math Formula Blue Pattern Umbrella | STEM Windproof Travel

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I've used this Math Formula umbrella in rainy weather, and it's both fun and practical. The blue STEM-inspired formula pattern makes it perfect for students, teachers, or anyone wh o loves science and math, turning a dull rainy day into something educational and stylish. It opens quickly with one hand in about a second, which is perfect when carrying books, bags, or on the go.Product features Premium 100% polyester pongee waterproof fabric Semi-automatic one-hand open, opens in 1 second 8 durable fiber ribs for wind resistance Ergonomic rubber handle with wrist strap Full-coverage sublimation print with sleeve Show more