Glasses, wristwatch, guitar, bass, effects unit, keyboard, amplifier, musical instruments, equipment, electronics, repair, parts, tools Inner diameter (hole size): 1.4mm Outer diameter (diameter): 3.0mm Two brand new, unused items. Will be shipped via Yu-Packet Post Mini. If you want more than 2 pieces, you can add them for 80 yen each. Please let me know the number of pieces you want in the comments before purchasing. Other sizes of washers are also on sale → #ss14i83uw If you purchase multiple items together, we will discount the shipping cost. Please let us know in the comments before purchasing, or use the combined purchase request function. We will correct the price to reflect the combined shipping discount. #9683l