silicone rubber o-ring 1. Large stock quantity. 2. Anti-toxic, high quality. 3. ROHS approved.. 4. Small quantity accepted. Details about product: 1. Materials: silicone rubber o-ring for toys, also can be NBR, EPDM, Viton, etc., all ROHS approved.2. AS568 silicone rubber o-ring for toys, BS, JIS, metric all sizes in stock.3. Characteristics: high and low temperature resistant, ozone resistant, ...