Eonvic USB C Female to Female Connector for Arcade Sticks, Leverless Controller DIY, etc. This item costs 1350 yen each on Amazon. Includes screws and nuts. I am selling these because I have spare parts for DIY arcade sticks. They are basically unused, but have been stored at home. The 7th photo is an example of it being attached to a piece of scrap acrylic. The inner circle size is 21.65mm, and the included screws and nuts are 3mm. I generally make a 22mm hole with a hole saw, mark the screw positions, then drill 3.2mm holes and tighten the nuts from the inside. Also, as shown in the 8th photo, even in cases that use Neutrik "NAUSB-W" like Kuromaki Kobo, the hole itself will be a little loose, but the diagonal screw distances are exactly the same, so it can be used normally by fixing a washer. I have installed it on 5mm acrylic plates for my DIY leverless controllers, but be aware that the screw length may not be sufficient for thicknesses like 8mm. I plan to ship via Nekopos after checking for power and operation before shipping. If you want to buy multiple items, I will discount the Nekopos shipping fee by 200 yen for each additional item, so please comment before purchasing.