1 or 2 rubber in a pack

Phil,

There are videos on utube  that will show you how to remove and how to glue rubbers onto a blade

https://youtu.be/W1f6SeK7eVE   the person in this looks familiar!

https://youtu.be/DjdrXWuUIRY

Some retailers will do this for you but you would either have to send them your blade or visit them in person (probably not possible during lockdown in the UK)

if you are going to do this yourself then I'd avoid buying the most expensive rubber, there are plenty to chose from that cost around £25 a sheet that good club players would be happy to use.

Good luck

Phil,

Here are Some links to retailers there are lots more if you search for them. 

https://www.teessport.com/

https://bribartt.co.uk/

https://www.speedybatsports.co.uk/

https://www.tabletennisdirect.com/

https://thorntonstabletennis.co.uk/

But there are plenty of others.