Withdrawing XRP from Binance to Trezor Suite

[Jadarach]

Hi Guys 

I'm a complete newbie to crypto / Exchanges and Cold wallets etc. I've bought some XRP on Binance on want to send it to my Trezor suite. I have my address from Trezor which I've entered on Binance but it's asking for a Tag and I have no idea where I find it and dont want to lose the XRP. 

I've just found a9 digit ID on Binance is this what I use i the TAG ?

Sorry if I'm stating the obvious just want to make sure I've got it clear in my head for the future.f

All help gratefully received.