The RaCe instruments are produced as "Pre-RaCe" instruments with a short working area for preparation of the coronal canal and as "RaCe" instruments for the preparation of the middle and apical portions of the canal. Twenty different basic designs of RaCe instruments are available, different lengths (21 and 25 mm) give the number of instruments of ca. 30. The tapers of the Pre-RaCe and RaCe instruments vary from 06 to 10 and from 02 to 06, respectively (see tables in the photo folder). The sizes from #15 to #60 are available in the 02 taper series, while RaCe instruments in the 04 and 06 series have only three sizes (#25 - #35 and #20 - #30). RaCe is available also in four sets, designed for preparation of canals with different sizes and shapes, or to be used with different techniques (crown down, step back, e.g.)