Double Gracey combination instrument for mesial and distal surfaces. Anterior: one working end replaces 1-2 or 5-6, the other end 7-8 of the classic Gracey instruments. Posterior: one working end replaces 11-12 or 15-16, the other end 13-14 of the classic Gracey instruments. Ergonomic, lightweight plastic handle. Durable and recyclable using conventional methods. Featuring XP Technology which offers maximum comfort and precision for user and patient without any sharpening.