The Radiator – Funny Plumber’s Notebook ノートブック

This notebook features The Radiator — a straightforward visual joke combining a radiator with a gladiator. It’s just a bit of humour for everyday work. Something to scribble measurements, calculations, job notes, or reminders in, while having a quiet laugh at the design on the cover. No overthinking it — just a practical notebook with a plumbing-themed joke to make the day a little less dull. Great as a small gift or a personal notebook for plumbers, heating engineers, or anyone in the trade who appreciates a simple visual joke.