Rare and unique, this is a triangular "Bicycle Day" blotter sheet. Each of the three sides is 5cm, and the sheet consists of 25 blotters linked in a rhombus shape. 【Features】 ・Vegetable ink, offset printing ・Paper quality (stiff blotter paper, 150g/m^2 or more) This sheet will be: ・Wrapped in vinyl to prevent it from getting wet, ・Placed in a cardboard envelope to prevent it from bending, and ・Carefully packaged and shipped. Blotter art began in the 1960s when acid dealers sought to differentiate and highlight their products from competitors, leading to the branding of beautiful blotter sheets as art, which then began to circulate in the market. The choice of this printed and perforated paper, the blotter sheet, as a medium was influenced by the regulations of American law at the time. After 1970, the legal hobby of collecting unused blotter "art" flourished, and the artwork became even more sophisticated. In the 80s, a private museum of blotter art called III was established in San Francisco. Today, blotter art is collected as a field of applied art. How about it as a gift or for your collection? Originally printed with vegetable ink on blotter paper (blotter sheets) made to soak up psychedelics, and perforated. The perforations also have their own unique characteristics, providing clues to identify each creator. From various perspectives, blotter art is now an established art form recognized worldwide. Discounts are available for those who purchase multiple types at the same time. Please view the items by selecting "on sale" under the hashtags #blotterartjapan #hofmann_blotter. If you are interested, please leave a comment. Of course, this is an art piece and does not contain any compounds. #HEADSHOP #blotterart #blotter_vanity #blotter_mandara #triangle_blotterart