Geib® Black Pearl Thinning Shears are madefrom a high performance Japanese cobalt alloy metal with aRockwell Hardness Rating of 60. Ergonomic handles Easy-adjust tension screws with a pearl accent Titanium-coated black finish Round razor sharp blades cut smoothly Handles and finger rests are contoured for maximum comfort and precisionPerfect for bulking out coats and blending areas aroundclipper lines. These 47-tooth pet thinning shears measure 7"with a Rockwell Hardness Rating of 60. Each shear includes asparkling finished sheath with a snap closure. Blending Shears compared tothinning/finishing shears have a higher number of teeth perinch of shear. Thus the cumulative cutting surface is smallerand less hair is removed with one motion. This allows them tobe used to soften harsh clipper lines by blending close to theskin and also for bulk thinning. Thinning/Finishing Shears have a lower number of teethper inch of shear. Thus the cumulative cutting surface islarger and more hair is removed with one motion. This allowsgroomers to bulk thin larger areas at one time. These shearsare also great for finishing a "natural coated breed" theycreate that natural look easily. Material: Japanese cobalt alloy metal with ablack titanium coating Size: 7" 47-Tooth Thinning Shear Rockwell Hardness Rating: 60 Per the manufacturer Geib Shears can vary by 1/4" to 1/2"in length.