■ PRODUCT FEATURES ■ ultra-fine stainless steel pipe tip core diameter is 0.78 mm which can open and look at all the detail. No modification. Comes in a blister pack * Green Purchasing Law fit item ■ Product Specifications ■ · Ink Pens composition both oil-based and water-based inks, ink pens, ISO Safety Standards · Size/Weight 62 x 22 x 177 mm/G Volume 18ml/Cap · 28% recycled material used Petty registration Patent-pending design registered &