... ,REACH,FDA approved 4.Flexible,Du sell Silicone Tubing / Silicone rubber tube.1. Material: 100% silicone rubber, non-toxic2. Quality--ISO standard, SGS, ... resistant, Flexibility resistant, Abrasion resistant, sun & weather resistant, Low & high temperature resistant and Non-poisonous.5. Operating temperature: -70 to ... 3mm~20mm, Wall thicknesses starting from 0.25mm. Heatproof flexible silicone hose