{"product_id":"pentel-ain-stein-refill-leads-0-3-mm","title":"Pentel AIN Stein Refill Leads 0.3 mm","description":"Diameter: 0.3 mm ultra-fine — 15 leads per tube — available grades: 2B, B, HB, H\u003cbr\u003eCore: Hi-Polymer resin with ceramic honeycomb matrix — break-resistant under heavy pressure\u003cbr\u003eCompatibility: Standard 0.3 mm mechanical pencils\u003cbr\u003e\u003cbr\u003eUltra-fine refill leads for precision micro-drafting, dense margin notation, and complex technical schemas. The internal ceramic honeycomb structure significantly reduces tip breakage at this diameter — a common failure point with standard 0.3 mm leads under sustained writing pressure. Low-smudge formula keeps charts and layouts clean.","brand":"Pentel","offers":[{"title":"2B","offer_id":51785887449437,"sku":"4902506269102","price":800.0,"currency_code":"JPY","in_stock":true},{"title":"HB","offer_id":51785887482205,"sku":"4902506269126","price":800.0,"currency_code":"JPY","in_stock":true},{"title":"B","offer_id":51785887514973,"sku":"4902506269119","price":800.0,"currency_code":"JPY","in_stock":true},{"title":"H","offer_id":51785887547741,"sku":"4902506269133","price":800.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/4405\/4621\/files\/pentel-ain-stein-refill-leads-0.3-mm_4902506269126-1_79cd8e25-f689-402b-aafe-7626ee9fea39.jpg?v=1718415967","url":"https:\/\/unfide.com\/da\/products\/pentel-ain-stein-refill-leads-0-3-mm","provider":"UNFADE","version":"1.0","type":"link"}