... 2.Thermal stability 3.Non-stick,Low toxicity 5*7mm transparent silicone tubeMain features:1.Non-toxic, odorless, transparency, not yellowing ... ,2.Soft and elastic, good snarling deformation,3.Don't craze, long service life, cold high temperature resistant,4.With ... ,4000V:~10000V,3, hardness,45~80degree4Elongation:500~700% 5*7mm transparent silicone tube