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I Don’t Guess I Test Mug — Funny Engineer Electrician Multimeter Coffee Cup to Pinterest (opens in a new window)

PTC CREW · AI MODELS — Hired for the shoot

I Don’t Guess I Test Mug — Funny Engineer Electrician Multimeter Coffee Cup
Price range: $21.89 through $23.36
Sizes

This glossy black ceramic mug carries a bold, vintage-industrial graphic that speaks to hands-on problem solvers. Thick, vibrant print wraps the surface against the dark background, giving the artwork a rugged, workshop-ready vibe. It feels solid in the hand and the comfortable C-handle makes it easy to cradle a morning coffee between tasks. Durable finishes…

Machine wash cold. Tumble dry low. Iron on steam if it needs it, medium heat.

Skip the dryclean. Skip the bleach unless you have to.

This shirt’s pre-shrunk during the garment-dyeing process — so what you order is what you’ll still be wearing after washing twenty times.

Shipping
Every piece is made to order. Production takes 3–7 business days, then it ships — 5–10 business days after that, US only for now.

No warehouse full of guessed sizes sitting around. That’s the tradeoff for a shirt made specifically for you.

Returns
Since it’s custom-printed, we don’t do buyer’s-remorse returns. If it shows up wrong — damaged, misprinted, not what you ordered — send us a photo within 7 days and we’ll fix it. No hoops.

Sizing
Check the size chart before you order. When it’s close, size up.

FULL DESCRIPTION

Description

This glossy black ceramic mug carries a bold, vintage-industrial graphic that speaks to hands-on problem solvers. Thick, vibrant print wraps the surface against the dark background, giving the artwork a rugged, workshop-ready vibe. It feels solid in the hand and the comfortable C-handle makes it easy to cradle a morning coffee between tasks. Durable finishes mean the color stays bright after many washes, and the microwave-safe ceramic warms your drink quickly when you need a fast refill. Great for long shifts at the bench, early mornings before site calls, or quiet evenings tinkering with projects—the mug quietly celebrates the mindset of those who measure twice and test once.

Product features
– Glossy 100% ceramic in black with vibrant, high-definition print
– Available in 11 oz and 15 oz sizes to match drink preferences
– Dishwasher- and microwave-safe for busy, practical use
– Comfortable C-shaped handle and sturdy feel for everyday use
– Lead- and BPA-free; compliant with safety requirements

Care instructions
– Clean in dishwasher (put the product on top rack), or wash by hand with warm water and dish soap

 11oz15oz
Height, in3.864.72
Diameter, in3.353.35
Diameter (with handle), in4.725.12

DESIGN & AI DISCLOSURE

Pressure Tested Co uses generative AI tools as part of our creative process, including concept development, artwork, design elements, and product imagery. Each product is creatively directed, selected, reviewed, and prepared for sale by Pressure Tested Co, with manual editing and refinement used where appropriate.

Additional information

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