Redirect to full site from mobile website

I have a mobile optimized version of my main website and can redirect all mobile traffic to the mobile website, but how do I send them back to the full website if they want? Currently they just get sent back to the mobile site, I’ve looked up stuff on google and tried editing the htaccess to make the mobile website an exception but that didn’t work.

RewriteCond %{HTTP_USER_AGENT} "android|blackberry|iphone|ipod|iemobile|opera mobile|palmos|webos|googlebot-mobile" [NC]

RewriteRule ^$ /mobile-landing-page/index.html [L,R=302]

then link to regular website absolute url somewhere on mobile landing page

for example if its

it wont work

will work