This is a video explaining the K5B stitch, also called the Knit 5 Below stitch or Bubble Stitch. I use this stitch in my Grape Jellyfish pattern in my book "Knitted Beanies and Slouchy Hats".
by haalu
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by Kartick Sreya
by Knitting Stitch Patterns
by nadelspiel * Stricken & Häkeln
by Tithi's Craft Corner