Yae (Japanese squid fishing tool) rollers for DIY. There are 6 pieces. These have been tested in actual fishing several times. They roll very well. They are thicker than the rollers I have listed before. The hole diameter is 1.2mm, and a stainless steel rod can pass through. 1.0mm rods also work well. There are 22 colors available. Please specify your preferred number(s) after purchase. The quantities can be mixed.