Made by Radical : Extreme UV resistant, silicone, peep tubing. This tubing gives extreme rot and UV resistance exceeding that of silicone alternatives, yet parallels the grip and stretch properties of extruded natural latex. In fact UVR destroys the performance of silicone in nearly every category. Tested in the field from freezing snow to near 100 degree heat, it has passed every test thrown at it. 3 foot package.