You can only bring 1 small bag on board unless you purchase priority and 2 cabin bags.
Baggage allowances are determined by airlines and will depend on factors such as fare paid, class, route, aircraft type, government regulations, and the airline’s own company, commercial and health and safety policies.
Travellers are advised to verify baggage allowances with the airline when booking their ticket to avoid confusion or complications at the airport.
Ryanair’s baggage policy can be found on their website.
There are also a number of security considerations when packing your baggage. Please ensure that you familiarise yourself with these ahead of travelling to avoid any issues at the airport.