1.Material : 100% silicone + Ion 2,Size : XS, S, M , L,XL 3,The logo can be customized ... card is available . 3. Material : 100% silicone + Ion 4.Size : XS(16cm) , S( 17.5cm) , M(19cm), L(20.5cm), XL ... letters17 green /white letters 18 purple/white letters etc.Size: XS (16cm),S (17.5cm), M (19cm), L (20.5cm), XL ...