This block designed by Dr. Stevenson and manufactured by Brassier USA has it all! Includes holders for 20 burs in total for any preparation required during the BENCH EXAM: FGC, PFM, All-Ceramic Crown, Gold Onlay, Ceramic Onlay and preparation and restoration for both Class II Amalgam and Class II Composite. The diamonds are paired with a medium grit to provide you with efficient cutting and a fine grit to smooth the tooth surfaces. The purple-colored block is organized with laser-etched diagrams and numbers of each bur. The kit includes one of each of the following: 847KR-016, 8847KR-016, KS-0, KS-0F, 878K-012, 859-010, 10-830-012, 877-009, 8877-009, H248S-009, 329-006, 330-008, 244-007, 245-008, 55-008, 57-101, 169L-009, 7102-012, 7404-014, and 379-014. Replacement burs available in all sizes. Shipped in a factory-sealed plastic wrap.