Help Does anyone have a purchase link for a suitable rope for full suspension hanging?

[LongLegs24]

I'm sick of searching and was wondering if someone could send me a link of one they've already purchased for themselves? I think the recommendation is 12mm braided polyester or polypropylene rope right? It also needs to ship to the UK as that's where I am. I would go to a DIY store to look for one but I currently don't have any valid proof of age photo ID and I'm worried they'll try to ID me for it.

 

[HighFlight]

What's the age restriction for buying rope in the UK?