For all your indoor slick floor needs are the Poison Hybrid Slims from Atom Skates
The Atom Poison wheels are great at providing plenty of grip on both slick indoor surfaces such as dirty wood floors or slick sports tracks - But they are also very usable on outdoor tracks. Hence the Hybrid.
Poison wheels use the Atom Power Lip, which ensures grip and added stability.
These are the slim-version which are a bit more narrow than the regular version for sharper handling. The size is highly popular with most Roller Derby Skaters.