Qwikstrips are you interproximal solution for IPR for minor tooth movement! QwikStrips have a depth limiting design to prevent soft tissue injury while the unique handle provides a comfortable grip for optimal tactile control for the doctor. Refills 10 Per Pack Kit Contains 5: Single Sided: Super Fine, Fine, Medium, Coarse, Extra Coarse. Double Sided: Super Fine, Fine, Medium, Coarse, Extra Coarse. Contains 10: Serrated QwikStrips Total of 90 QwikStrips!