Instant purchase ◎ Price not negotiable ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ Both have 10mm shafts and 4mm balls. I bought them new and stored them unused. They are in good condition, but please refrain from purchasing if you are sensitive to minor imperfections. Water damage prevention only * Please be sure to check the profile section before purchasing. * To prevent trouble, we do not accept cancellations or returns after purchase, so please consider carefully before purchasing. * For loss due to postal accidents, we will only submit an investigation request. (It is difficult to confirm the facts with regular mail because it is difficult to confirm whether it has actually not arrived.) I keep the receipt and posting video at the time of shipment until the transaction is completed. If the shipping method is regular mail, you can change to Mercari mail for an additional fee. ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰ ⋱⋰