40oz Pi Day Insulated Travel Mug with Handle — Stainless Steel Math Tumbler, Spill-Proof Lid

Celebrate your love of math with this 40oz Pi Day Insulated Travel Mug. Featuring a bold red Pi symbol encircled by the digits of pi on a sleek white finish, it's the smart choice for teachers, students, and engineers.

This stainless steel tumbler uses double-wall vacuum insulation to keep coffee hot or water cold for hours. With an ergonomic handle, tapered base that fits cup holders, and a spill-proof straw-friendly lid, it's designed for smart hydration on the go.

Key Features:

- Capacity: 40 oz.

- Design: Red Pi Symbol & Digits.

- Insulation: Double-wall stainless steel.

- Lid: Clear, spill-proof with straw access.

- Best For: Pi Day gifts, teachers, STEM students.

Calculate your perfect sip. Order this math tumbler today!