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Assassin's Water Bottle

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$48 $165 In stock

Introducing the Assassin’s Water Bottle — a dual-chamber bottle inspired by the Assassin’s Teapot.



Dual Chamber Design: Control which liquid pours with a thumb-operated air hole.



BPA/BPS-Free: Made from safe, durable Tritan plastic.



Educational: Inspired by scientific principles, perfect for curious minds.



Includes Sleeves: Customizable with decorative sleeves, each with a unique mathematical pattern



Age 12+: Recommended for science enthusiasts of all ages.



Hand wash only.

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When it ships

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Nicholas C. ★★★★★

I was skeptical about the dual-chamber design, but the thumb-operated air hole works perfectly to switch between water and my electrolyte mix. It's also reassuring that it's BPA/BPS-free.

Leo ★★★★★

The thumb-operated air hole is incredibly intuitive; a slight cover switches chambers effortlessly. I've already used it to prank a coworker with plain water after showing them the colored side. It's genuinely clever and built from solid, BPA-free materials.

Ava K. ★★★★★

I was skeptical about the dual-chamber design, but it's surprisingly easy to switch between drinks just by covering the air hole. The BPA-free plastic feels sturdy enough for daily use without any weird taste. Really glad I finally have a bottle that keeps my water and electrolyte mix separate.