“This Coffee Is Ground-Fault Protected” Black Mug
Free shipping when you spend $170.10+ (United States only). Promotion auto-applied on checkout.
Start your morning with a spark of brilliance—and a touch of sarcasm. The “This Coffee Is Ground-Fault Protected” mug is the perfect companion for engineers, electricians, or anyone who lives on the edge of OSHA compliance. Featuring a glossy black ceramic body with a bold white print area, it’s as sleek as it is cheeky.
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Durable black ceramic with white print area
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15 oz capacity – more volts per sip
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Dimensions: 4.7″ tall x 3.35″ wide
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NOT microwave or dishwasher safe (safety not included)
More details
- Ceramic
- 11 oz mug dimensions: 3.85″ (9.8 cm) in height, 3.35″ (8.5 cm) in diameter
- 15 oz mug dimensions: 4.7″ (12cm) in height, 3.35″ (8.5 cm) in diameter
- Dishwasher and microwave safe
EU GPSR Product Information:
- Manufacturer contact information
- Name: Wacky Engineering
- Email: contact@support.wackyengineering.com
- Postal address: PO Box 5696 Santa Monica, CA 90405
- Additional information: This product is made for adults. Meets the lead and cadmium level requirements. 2 year warranty in EEA and UK, established by Directive 1999/44/EC.
Size & Fit
- 11 oz mug dimensions: 3.85″ (9.8 cm) in height, 3.35″ (8.5 cm) in diameter
- 15 oz mug dimensions: 4.7″ (12cm) in height, 3.35″ (8.5 cm) in diameter
Quality Guarantee & Returns
- Quality is guaranteed. If there is a print error or visible quality issue, we'll replace or refund it.
- Because the products are made to order, we do not accept general returns or sizing-related returns.