Caution! High Caffeine Levels Present — Two-Tone Mug

$11.95

This bold graphic tee features a striking yellow hazard label, a Workplace Hazardous Materials Information System (WHMIS) warning triangle, and the chemical formula for caffeine. It is the perfect blend of industrial workplace humor and laboratory science geek style for anyone who runs on pure espresso or copious amounts of coffee!

Ideal novelty present for chemistry students, lab technicians, pharmacists, shift workers, and caffeine addicts who need a high-energy warning label.

This fun design makes a hilarious birthday, graduation, or Christmas gift for teachers, geeks, and engineers who love sarcastic industrial safety jokes.

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More details

  • Ceramic
  • 11 oz mug dimensions: 3.79″ (9.6 cm) in height, 3.27″ (8.3 cm) in diameter
  • 15 oz mug dimensions: 4.69″ (11.9cm) in height, 3.35″ (8.5 cm) in diameter
  • Dishwasher and microwave safe

Size & Fit

11 oz

  • Height: 3.79″ (9.6 cm)
  • Diameter: 3.27″ (8.3 cm)


15 oz

  • Height: 4.69″ (11.9cm)
  • Diameter: 3.35″ (8.5cm)

Quality Guarantee & Returns

  • Quality is guaranteed. If there is a print error or visible quality issue, we'll replace or refund it.
  • Because the products are made to order, we do not accept general returns or sizing-related returns.