Coarse/Medium: 7" x 5/32" These finishing and polishing strips are designed to help prevent interproximal plaque buildup for superior finishing and polishing results. Designed with ease for use and to smooth proximal surfaces. Strips are gapped at their centers for easy interproximal insertion. Precision-coated with an aluminum-oxide grit to produce a smooth restoration surface that helps prevent interproximal plaque buildup. Suggested Application: Finishing and polishing composite, ceramic and glass ionomer dental restorations.