Features: What You Get: 5 x 40cm PTFE Tubing , 10 x PC4-M6 Fittings , 10 x PC4-M10 Fittings. Premium Capricorn XS PTFE tubing with the lowest friction on the market. Less friction means more responsiveness, less retraction, more accurate prints, less slippage, wear, and tear on the extruder, and less clogging when printing chunky filaments such as some woodfills or ironfills. 10 x PC4-M6 and 10 x PC4-M10 Pneumatic Fitting to secure PTFE in extruder and hot end. The PTFE blue tubing outer diameter 4 mm, inner diameter 2 mm, which is applying to 1.75mm filament. Any problem, please contact our store without hesitation. Honor to serve you. Specification: For: 3D Printer Material: Plastic, Metal Package Size: 17 x 12 x 2cm/6.7 x 4.7 x 0.8in Package Weight: 126g/4.4oz Packing List: 5 x 40cm PTFE Tubing 10 x PC4-M6 Fittings 10 x PC4-M10 Fittings