UNI CAENIS € 2.00 - + Shop This product has been added to your cart. Reference : 802353007954 Category : Fly tying Brand : UNI _ : _ C Uni Caenis : blanc noir Description Reviews Product details The smallest thread in the world for dressing midges on hooks # 20 and smaller. Monofilament, it has half the size of 17/0.200 yds reel. 20 deniers. Add review