YKK 38mm Width Resin Buckle Adjuster (Koki) LA38S, Square Tube Set LT38K, 10 Sets These are YKK-made resin buckles suitable for bags, shoulder straps, etc. The set includes 10 adjusters (sliders, koki) and 10 square tubes. Color: Black. If you only need adjusters or only square tubes, please comment. We will provide a separate estimate. Adjusters and square tubes can be sold separately for 25 yen each, but purchases of less than 20 pieces will incur an additional shipping fee of 180 yen. Shipping method is basically Yu-Packet Post. We do not ship via methods that do not offer tracking, such as regular mail. Shipping will be in an envelope via Yu-Packet Post. Material...Resin/Plastic Material...Plastic Color...Black Parts...Connecting金具