OCEAN REEF Gamma Alpha HD 

HI! You can buy directly on our e-commerce or contact your local dealer. Find here the product page with the available colors here: diving.oceanreefgroup.com/product/extender-kit/

Hi! Here is the product page info: diving.oceanreefgroup.com/product/gamma-alpha-hd/ You can contact your local dealer or the OCEAN REEF Italian headquarters E-mail: infoitaly@oceanreefgroup.com Thank you!