A pan flute, also known as panpipes or syrinx, is a musical instrument that works on the principle of the closed tube. It consists of multiple pipes that gradually increase in length (and sometimes girth) from one end to the other. Pan flutes have been popular as folk instruments for centuries, with various varieties found in cultures around the world.

Introducing the Fire Door Gap Checker by DP Makes! This tool simplifies assessing fire door gaps, crucial for compliance and safety. Keep door gaps under 3 mm to maintain effectiveness against smoke and fire. Use it as a preliminary check, alongside professional inspections, for optimal safety.