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 Heritage 1998 Vapor 360 Elite FG iD Soccer Cleat R9 sz 9 Football Boot Ronaldo 98 Limited Edition for Sale in Chicago, IL - OfferUp
The Ronaldo 1998 Mercurial Boots Are Getting A Reboot - SPORTbible
The Ronaldo 1998 Mercurial Boots Are Getting A Reboot - SPORTbible
Exclusive: Nike Mercurial Neymar 2018 Signature Boots to Be Inspired by 1998 Mercurial - Footy Headlines
15 years with the Mercurial R9 - The original faces off with the heir
NIKE MERCURIAL 1.0 R9 FG (1998) RONALDO * SOCCER CLEATS * US 9 | Ronaldo soccer, Soccer cleats, Nike
Nike Mercurial FG 1998 R9
Nike Mercurial World Cup football boots from 1998 to 2010
Nike Mercurial Vapor - 1998 versus IX Special Edition - Soccer Cleats 101
I custom made Ronaldo R9s 1998 Nike Mercurial Vapor's : r/bootroom
I custom made Ronaldo R9s 1998 Nike Mercurial Vapor's : r/bootroom