The Dr Plumb Dinky are great little, characterful, pocket sized pipes, which incorporate the re-usable metal filter system for a cooler, cleaner smoke. Being lightweight and still having a fairly wide mouthpiece makes them very relaxed and easy on the teeth. Please note they are designed as a pocket pipe for a quick few puffs not an evening in front of the fire. Anything longer than 20 minutes is likely to overheat the pipe, which can damage the pipe and will affect the flavour of the smoke.