"I've lost my centering tool." "A ballpoint pen that's easy to draw on white porcelain and whose guidelines disappear after firing?" This product is also sold at Kiln Art and Utsuwa to Etsuke. Please refer to image 2 for how to use it. (Image 2.3 Source: Utsuwa to Etsuke's website) Since the items are listed on Mercari for 300 yen and up, I'm selling a set of the centering tool and ballpoint pen, but individual items are also OK. If you want to purchase individual items, please comment. (For one centering tool: 187 yen + shipping 85 yen + commission 28 yen = 300 yen) ◯ Price ・ Staedtler centering tool: Retail price 187 yen ・ BOXY ballpoint pen: Retail price 110 yen ・ Shipping: 110 yen ・ Mercari commission: 41 yen ・ Total 448 yen → Listed for 460 yen The difference of 12 yen is for the OPP bag and envelope (crying). I will ship via regular mail (non-guaranteed). Because it's barely 1cm thick, I'll put it in an OPP bag and then in an envelope (no cardboard or backing). Please ask any questions before purchasing. I am not considering lowering the price, so I would appreciate it if you could purchase it with understanding. If you purchase it together with other items I'm selling, I will recalculate the shipping fee, so please comment before purchasing. Porcelain art White porcelain China painting Porcelain art Item...Ballpoint pen"