I believe these are the mercurial r9 from 1998. I remember having a pair with the same colorway but without cleats. For indoor soccer I believe but can't find any info online.
Nike Mercurial Vapor I Talaria FG AG R9 Ronaldo Cleats Elite Pro 38.5 6 5.5 7.5 | eBay
Nike Mercurial Vapor II TF AG Astro Turf Football Trainers Boots Size us8 uk7 R9 | eBay
Nike Mercurial Superfly 9 Club Indoor/Court Soccer Shoes. Nike.com
Collector boots Ronaldo Nike Mercurial R9 ref 117311 size us8 RARE inter milan | eBay
Nike Mercurial Superfly 9 Club Indoor/Court Soccer Shoes. Nike.com
Nike Mercurial Superfly 9 Club Indoor/Court Soccer Shoes. Nike.com
Nike Mercurial Vapor I Talaria Indoor TF R9 Ronaldo Blue Cleats Elite 7 8 40 8.5 | eBay