Yes, ROULETTES is a Scrabble word!

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

Is it a valid word?

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

a line generated by a point on one figure rolling around a second figure
a wheel with teeth for making a row of perforations
a gambling game in which players bet on which compartment of a revolving wheel a small ball will come to rest in

Also: line roulette, toothed wheel.