{"product_id":"grid-marked-groove-drawing-ruler","title":"Grid-Marked Groove-Drawing Ruler (Acrylic)","description":"\u003cp\u003eA grooved ruling ruler designed for educational use. Available in 25 cm \u0026amp; 30 cm.\u003c\/p\u003e\n\u003cp\u003eBy placing a glass rod or metal rod in the groove, you can draw clean, precise lines with a brush — ideal for calligraphy, technical drawing, and art education.\u003c\/p\u003e","brand":"Art\u0026Stationery","offers":[{"title":"25cm","offer_id":49035062902939,"sku":"nick25","price":500.0,"currency_code":"JPY","in_stock":true},{"title":"30cm","offer_id":49035062935707,"sku":"namu30","price":600.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/6509\/5835\/files\/drawingruler.webp?v=1784520018","url":"https:\/\/art-stationery-jp.com\/ar\/products\/grid-marked-groove-drawing-ruler","provider":"Art\u0026Stationery","version":"1.0","type":"link"}