I suppose these dust covers are compatible with the measures of most standard western-type sticks. They may be interesting if the external diameter is not so big. These sticks have a shaft with diameter of 1,3 or 1,4 cm, and the hole diameter of the dustcovers is 1,5 cm or so. The external diameter of the dustcover that comes as standard (Industrias Lorenzo) is 5,3 cm (quite big). I don't know about Sanwa sticks, but my LS-32 has a shaft diameter of 0,8 or 0,9mm, the same as my Namco Arcade Stick. I suppose this is a standard, because both dust covers have a hole diameter of 1 cm and the external diameter is 3,5 cm. So, summarizing, we have:
- Japanese sticks without the shaft cover: 0,8-0,9mm (shaft) / 10 mm (hole) / 3,5 mm (dust cover)
- Western-type sticks: 1,3-1,4mm / 1,5 mm / 5,3 mm
- Japanese sticks with the shaft cover: 1,3-1,4mm (I suppose) / 1,5 mm (I suppose) /


?? <- unknown data
Anyone can confirm and complete this information?