[Size] - 4mm Outside Diameter, 1mm Inner Diameter, 1.5mm Cross-Section Diameter [Hardness] - 50 Durometer (Shore Hardness) for resistance to penetration [VMQ] - Standard silicone with a wide temperature range from -22 (-30) to 392 (200) [Application] - Can be used for travel mug cup lids, espresso coffee maker and weldless fitting for brewing [Application] - Widely used for Hydraulics and Pneumatics sealing, pressure valve, gas compressor, reaction valve, heat exchanger, boiler, filter, automobile mechanical