ITEM NAME:3 Pieces Ptfe Teflon Tube (2 Meters) + 6 Pieces Pc4-M6 Quick Fitting + 6 Pi U6V4 3 Pieces Ptfe Teflon Tube (2 Meters) + 6 Pieces Pc4-M6 Quick Fitting + 6 Pi U6V4 Teflon Tube: outside diameter is 4mm, inside diameter is 2mm, made of durable PTFE (Poly Tetra Fluoro Ethylene), with non toxic and wear resisting, the density is 2.15-2.20g/cm3, heat resistant up to 260 Celsius PC4-M6 fittings: thread M6/3mm, inner diameter(blue end) 4mm, fit for the tube whose outer diameter is 4mm, durable and sturdy PC4-M10 fittings: thread M10/6mm, inner diameter(black end) 4mm, fit for the tube whose outer diameter is 4mm, antioxidtion, anti corrosion and high hardness Easy to install: connecting by the outer thread of the quick fitting, easy to install Compatibility: compatible with all 1.75mm PLA ABS 3D printer Note: Small parts, please keep them away from children. colour:white Material:plastic Package Contents: 3 * 2M PTFE Teflon Bowden Tube 6 * PC4-M6 Fittings 6 * PC4-M10Fittings.3 2M PTFE Teflon Bowden Tube. Easy to install: connecting by the outer thread of the quick fitting, easy to install.