3D-printed This is a part for attaching KATO couplers (close-coupling type) to TOMIX, Greenmax, Micro Ace, etc. TN couplers are expensive! I want realistic coupling faces and distances! This product is recommended for those people. When using, you may need to cut a part of the product, as with the installation of TN couplers. This product includes 50 pieces. We also sell other quantities. Please feel free to inquire in the question section or other listings. Requires KATO product 11-731 (sold separately) and assembly. We also sell pre-assembled versions with the couplers already attached, so if you find the processing troublesome or are not good at it, please purchase that version. For additional orders, it will be +50 yen per piece, but we will offer a discount for customers who purchase in bulk.