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Flag of Tula Oblast Russia - Color Changing Mug 11oz

Flag of Tula Oblast Russia - Color Changing Mug 11oz

100 in stock

Regular price $17.99 USD
Regular price Sale price $17.99 USD
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Flag of Tula Oblast (Russia) - Color Morphing Mug Design

The official flag of Tula Oblast, Russia, is a bold red field with three silver sword blades crossed at its centre and a gold hammer above and another below.

Visual Elements & Composition

Red fills most of the design, so the metallic charges do all the work against it. The three silver blades cross through the middle as one emblem, and the two gold hammers sit on a vertical axis that balances the crossing. Silver takes a small share of the palette and gold smaller still, which keeps the flag graphic and direct. The flat vector rendering carries no text or numerals, so the emblem reads cleanly at a glance.

Meaning & Symbolism

The emblem is drawn from the region's coat of arms and celebrates Tula's identity as a historic centre of Russian arms manufacturing. The blades stand for weaponry and the hammers for the metalworking that produced it. The city's claim to that history is firm: the first state armoury was founded there in 1712. The flag was adopted in 2005, and its red ground gives the silver and gold charges strong contrast, a heraldic approach that carries industrial pride into a modern design.

Why It Suits a Mug

A mug is turned in the hand, so the emblem is read in pieces as the cup rotates: blades first, then a hammer, then the second hammer coming round. The colour-changing surface adds a second act. Pour in something hot and the design rises out of the cool surface, so the crossed blades arrive gradually, the way a good story unfolds over a morning coffee. It is a gift for anyone who admires old craft and likes a little history with their first cup.

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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.