ITEM NAME:6Pcs Fishing Hook Aligner Sleeves Anti Tube Hair Rigs img *{margin:0;padding:0;.Better Hookholds and anti-eject properties - Creates a much wider gape than a standard knotless knot or Zig Bug style hook. 6 Pieces Sleeves. The shape of the combined with a foam insert very much replicates the shape of a nymph with a thin curved body and a big head.