Yes, ROLLERS is a Scrabble word!

Letter values in Scrabble US: R 1, O 1, L 1, L 1, E 1, R 1, S 1.

Is it a valid word?

ROLLERS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

a grounder that rolls along the infield
a long heavy sea wave as it advances towards the shore
a small wheel without spokes (as on a roller skate)
a cylinder that revolves
a mechanical device consisting of a cylindrical tube around which the hair is wound to curl it
Old World bird that tumbles or rolls in flight; related to kingfishers
pigeon that executes backward somersaults in flight or on the ground

Also: rolling wave, hair curler, tumbler pigeon.