... grade silicone rubber, non-toxic, odorless, harmless2. It is manufactured in hermetic environment, waterproof, dirt resistant, anti-oil, anti-acid, ... colors, sizes and designs are available5. Our company believe in "Quality First", so our products have high quality assurance ... special size 4. LOGO:debossed/embossed/debossed and fill in color/ embossed and printing/ silkscreen printing5. standards:All ...