SIQUK 5 Pieces Teflon Tube Blue PTFE Tubing (1M) with 10 Pieces PC4-M6 Fittings and 10 Pieces PC4-M10 Fitting Connector for 3D Printer 1.75mm Filament

PTFE Blue Tubing - the blue color teflon tube outside diameter 4mm, inside diameter 2mm, density 2.15-2.20g/cm3 PC4-M6 fittings - thread M6/3mm, inner diameter(blue end) 4mm, fit for the tube whose outer diameter is 4mm PC4-M10 fittings - thread M10/6mm, inner diameter(black end) 4mm, fit for the tube whose outer diameter is 4mm Premium Material - the teflon tube made of durable PTFE (Poly Tetra Fluoro Ethylene) material, PC4-M6 Fittings is made of Copper; PC4-M10 Fittings is made of stainless steel