OptraSculpt Composite Instrument & Pad System Posterior Kit. Contains: 1 double-ended instrument, 1 single-ended instrument, 60 4mm pads, 20 ball refills, 20 chisel refills, and 20 pointed tip refills. Nonstick surface enables composite filling materials to be shaped and contoured without leaving any unwanted marks. High efficiency. Provides an ideal working angle for posterior regions. Hygienic storage container for easy access to attachments.