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.
Mercurial Mk1 - The Original R9 - SoccerBible
Nike Mercurial World Cup football boots from 1998 to 2010
Nike Mercurial R9! – Boots Vault
Collector boots Ronaldo Nike Mercurial R9 ref 117311 size us8 RARE inter milan | eBay
Rare Nike Mercurial R9 Ronaldo World Cup 1998 2.1 FG | eBay
Nike Mercurial World Cup football boots from 1998 to 2010
Nike Mercurial Vapor IX SE FG MVXV (Ronaldo R9 1998) - Unboxing + On Feet - YouTube
UPDATE: Dembélé Trains in Nike Mercurial Vapor XII 1998 Boots - Footy Headlines
Mercurial Mk1 - The Original R9 - SoccerBible
Nike Mercurial R9 1998 – Boots Vault
I custom made Ronaldo R9s 1998 Nike Mercurial Vapor's : r/bootroom