MUYI 10 Meters = 32.8 Feet PTFE Teflon Tube OD 5mm ID 3mm for Chemical Electrical Medical Equipment Material: PTFE (Polytetrafluoroethylene). Length: 10 Meters/32.8 Feet. Outside Diameter: 5mm, Inside Diameter: 3mm Temperature range: -190-+280 . Use for wiring in Chemical, Electrical and Medical Equipment.