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Rutacol-7801C (Colombia) (Road Sign) Color Changing Mug 11oz

Rutacol-7801C (Colombia) (Road Sign) Color Changing Mug 11oz

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Regular price $17.99 USD
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Rutacol-7801C (Colombia) (Road Sign) Color Changing Mug 11oz

A dark green route shield with a white inset border and the bold numerals 7801, drawn in the flat, no-nonsense style of a modern road sign.

Visual Elements & Composition

The sign is a rounded rectangle filling the frame, with dark green covering roughly four-fifths of the surface and white taking the rest. A white inset border outlines the plate, and the numerals sit centred in heavy white lettering, so the number is the first thing the eye reads. Nothing competes with it. There is no illustration or gradient, just clean geometry and clear type.

Meaning & Symbolism

Colombia's Rutacol markers are the shorthand for national-route shields, the signs that tell drivers a stretch of road belongs to a particular national highway. Standard shields carry one- or two-digit route numbers. This design takes the longer identifier 7801C, which reads more like a location code, the kind of reference that pinpoints a segment or milestone for travellers and emergency services. Its origin is open to interpretation, and that ambiguity is part of its charm: it sits somewhere between an official route marker and a specialised map reference.

Made for the Morning Cup

A road sign is built to be read at a distance, but a mug brings it into the hand, where the numerals are close enough to read on every sip. The sign wraps around the curve of the cup, so the route runs continuously from one side to the other. The heat-reactive surface holds the design back while the mug is cold, then reveals it as the coffee warms, like a marker coming into view at the end of a long drive.

Size

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Color-changing ceramic mugs with a glossy finish, black exterior, and white interior. Available in one size: 11 oz (≈330 ml). Heat-reactive coating reveals your custom design when filled with hot liquid. BPA- and lead-free, with a comfortable C-handle.

This mug brings a playful twist to the daily coffee or tea ritual. At room temperature, it looks like a simple black mug with a glossy finish. But add a hot beverage, and your chosen design fades into view, showing vivid colors against the white interior.

The ceramic body is durable enough for repeated use, while the C-shaped handle balances comfort and grip. Printing uses sublimation techniques that fuse color into the heat-reactive surface for crisp results when the design appears.

  • Material: ceramic with glossy black exterior and white interior.
  • Size: one standard size, 11 oz (≈330 ml).
  • Finish: glossy glaze with heat-sensitive surface.
  • Printing: sublimation process produces crisp, vibrant colors.
  • Safety: BPA-free and lead-free, suitable for everyday drinks.
  • Effect: design is faintly visible when cold, fully revealed when hot.

Perfect as a novelty gift or a fun personal mug, the heat-reactive design makes coffee breaks more engaging. It works well for morning coffee, afternoon tea, or hot chocolate.

  1. Daily routine: fill with any hot beverage to reveal your chosen artwork.
  2. Gifting: the “magic” reveal makes it a memorable present for birthdays, holidays, or office exchanges.
  3. Office use: sparks conversation while still being practical for everyday drinks.

Note: for best results, avoid designs that rely heavily on deep black backgrounds, as they may blend with the mug’s surface when cold.

Unlike standard mugs, color-changing mugs require gentler care to preserve the heat-reactive coating. Hand-wash only — avoid the dishwasher and abrasive scrubbers, which can damage the finish and reduce the effect.

The mug is safe for short microwave use when heating liquids, but repeated high-heat cycles may shorten the lifespan of the coating. Always allow the mug to cool before washing.

Available in one classic size: 11 oz (approximately 330 ml). It’s large enough for most standard coffee makers and fits comfortably in most cabinets.

Size guide

All measurements are product dimensions in inches.

11 oz
Height (in) 3.78
Diameter (in) 3.23
Diameter w/ handle (in) 4.76

Note: measurements are approximate; slight variations may occur due to manufacturing tolerances.