Compatibility: fit for 3D Printer 1.75mm Filament and other devices. | Blue PTFE Tubing: durable PTFE material, safe and odor-free, self-lubricating, high-temperature resistance; Inside diameter 2mm, outside diameter 4mm. | PC4-M6 fittings: copper and plastic material, durable and sturdy; Thread: 6 mm, inner diameter(blue end): 4mm, fit for the tube whose outer diameter is 4mm. | PC4-M10 fittings: stainless steel and plastic material, anti-oxidation, anti-corrosion, and high hardness; Thread: 10 mm, inner diameter(black end): 4mm, fit for the tube whose outer diameter is 4mm. | Easy to Install: the extruder fittings are PC4-M6 and the hotend fittings are PC4-M10, the upper part can be inserted outer diameter 4mm PTFE tube and self-locking.

Compatibility: compatible with most vehicles with standard 12 V accessory plugs, like the cigarette lighter socket, the power outlet. Fit most American/Japanese cars, may not fit some European cars. | Material: the cigarette lighter plug is made of high-quality anodized aluminum material, durable and beautiful, well built, pretty cool, and funny. | Useful: the cigarette lighter plug can prevent foreign objects from entering the cigarette lighter receptacle and prevent short circuits. | Easy use: the cigarette lighter plug is a nice solid aluminum piece with nice o rings (rubber grommets) to keep it in place. | Note: the cigarette lighter plug, no heating function, is ornamental, and novelty, cool and funny gift!