This is a set of 7 flat shader brushes made from the hair of sable (kuroten; sable), known for its high-quality fur. The brush tips are neatly aligned and very flexible, and they hold paint well, allowing for beautiful painting. All of these are no longer sold and are therefore valuable. Brand: SUN-K - Quantity: 7-piece set - Model Numbers and Names: 1) SR-7301 Star Ruby Sable Shader 7000-00 2) SR-7302 Star Ruby Sable Shader 7000-0 3) SR-7303 Star Ruby Sable Shader 7000-2 4) SR-7304 Star Ruby Sable Shader 7000-4 5) SR-7306 Star Ruby Sable Shader 7000-8 6) SR-7307 Star Ruby Sable Shader 7000-10 7) SR-7308 Star Ruby Sable Shader 7000-12 About 20 years ago, I purchased many of these for a tole painting club I was in, and I have carefully stored and used them in a dark place inside a cardboard box indoors. The activity ended a few years ago, and I have these unused stock remaining, so I am offering them for sale. Although they are quite old, there is no deterioration of the packaging plastic. The packaging of the No. 4 brush does not have a "sable" sticker, but the brush itself is engraved with "shader 7000" (see photo), so it is definitely sable. The sticker on the back shows the price including the 5% consumption tax at the time (see photo). The price increased after that, and the price including tax before sales were discontinued was more than 2.5 times higher. Thank you for looking.