Luckily, I was finally able to find the spreading vanes here !!! The trade seems therefore no longer deliver. I have this blades for 10 years for 3 litter boxes with clumping litter in use. After 10 years, is the first of 3 blades now broken and thus began my problem. The other components available commercially are expensive and leave the unused parts scattered not, so a seven is impossible. I then have to cut with scissors holes, thus spreading fits through the too-small openings and any use was possible. That's not the case here, it just works as it should. The litter scoop came in 3 colors (black, red, blue) - a pity that no color choice was possible. By paws pattern in the right places, the unused scattering fits perfectly round, so that to the great price, the unbreakable longevity also comes to a reliable convenience. The thin suspension at the end I cut off ever since I do not need them and I feel it while cleaning disturbing. One of the 3 blades ordered by the way a Christmas present for a different cat owners, who also suffers from the blades commercially available for years. I would recommend this product without restrictions.
