If you’re all about fantastic fractals, or know someone who is, check out our Julia Fractal steel math tumbler; its eye-catching detailed design (plus the Tom Rocks Maths logo!) will always be a winner.
Product Features
• 20oz
• Double wall vacuum stainless-steel
• Lid is press-in and drink-through
• Keeps your drink hot for 5.5 hours
• Cold for 24 hours