... Yes ISO9001+ISO14001 fashion energy silicone negative ion sports magnetic watch 1.Material: pure silicone,softness,excellent abrasion ... water-proof,unbreakable easy to keep its shape. 2) Soft, flexible,excellent abrasion resistance. 3) Elastic design for comfortable ... water-proof,unbreakable easy to keep its shape. 2) Soft, flexible,excellent abrasion resistance. 3) Elastic design for comfortable ...