... .Material of strap: 100% Non-Toxic silicone 100% silicone strap, non-toxic,soft and comfortable., abs Case with display screens. 2.Certificate: We ... have CE & RoHS ,SGS etc. certificate for silicone watch. 3.Watch ... watch case: dia. 4.30x4.30cm , Thickness :1.2cm,strap width :2.0cm, strap thickness:0.3cm, The size of silicone watch ...