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TW CHW139 (Taiwan) (Road Sign) Color Changing Mug 11oz

TW CHW139 (Taiwan) (Road Sign) Color Changing Mug 11oz

100 in stock

Regular price $17.99 USD
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TW CHW139 (Taiwan) (Road Sign) Color Changing Mug 11oz

A bold black 139 sits inside a square outline on a white field, a stripped-back piece of Taiwan-themed graphic design that reads at a glance like a route marker.

Visual Elements & Composition

The design is flat vector work in just two colours: solid black, which covers about twelve percent of the surface, and white, which makes up the rest. The numerals are heavy and blocky, filling most of the frame so the number is the first thing the eye lands on. A thin square border surrounds them and gives the composition its only structure. Nothing else competes for attention. There are no backgrounds, illustrations or secondary text, so the layout depends entirely on the contrast between the numerals, the frame and the open white space around them.

Meaning & Symbolism

The square frame and numeral borrow the visual language of road signage, where a number on a plain panel identifies a route and helps travellers find their way. Here the sign has been reduced to its essentials, so the number becomes a quiet emblem of Taiwan rather than a literal direction. The artwork is a modern graphic piece, and its catalogue title, TW CHW139, ties it directly to Taiwan as its regional reference. This is an independent reproduction of that original artwork, and the design's meaning rests on its simple reference to the island and its signage tradition.

Making the Numerals Appear

A mug is turned in the hand and seen from every side, so a design that wraps around it has to hold together as you rotate it. This one does, because the square frame runs around the curve and the numerals sit at the centre of the view as the cup is lifted. The most distinctive moment comes when a hot drink is poured in: the faint numerals rise into full view, turning the sign into a small reveal each morning. It is a graphic that suits a daily ritual, and a considered gift for anyone who likes a clean, graphic look with a touch of surprise.

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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.