Promotional Siliocne Watch 1.Material:100% silicone, non-toxi ... 15,16,17,18,19 Promotional Silicone Watch This ionic sports watch is made with environmental protected grade ... of silicone rubber, mixed with Eli negative ions and anti ... quality silicone rubber, mixed with Eli negative ions and anti bacteria powders in production- size: 15,16,17,18 ...