The Osmo Amazon Fire tablet base (which includes a reflector) is sold as part of several Osmo kits or separately as an accessory on Amazon and our website:

https://www.playosmo.com/en/order

Please make sure you have a compatible Fire tablet from this list:

https://support.playosmo.com/hc/en-us/articles/360007204253-What-Amazon-Fire-tablets-is-Osmo-compatible-with-