The Shisato Avalon 40 tooth thinner is a very high quality blending shear. The shear is designed with the same high quality cobalt molybdenum alloy as the Avalon. The Avalon thinner is designed with an offset handle and, curved teeth, enabling this blending shear to cut and drag with ease while releasing from the hair more effectively. It has a permanent finger rest and mood dial tension control knob. You can expect excellent performance from this blender; this thinner is recommended.