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Picot Shell Border Edging

"Crochet Border, Crochet Edging, Crochet Trims, Crochet this easy Border or Edging to add to many different projects: blankets, table runners, table cloths, collars of Tshirts, trims on hats, edging around a pillow or baskets. Crochet it in a contrasting color or the same color. Use any yarns from acrylic to cotton. Use any size hook to make finer or larger trims, borders, or edgings. Learn how to work it directly onto a finished project, or work as a long strip by beginning with a foundation chain in multiples of 3. WRITTEN PATTERN below the video in the 1st comment."
Crochet HookJ/10 or 6 mm hook
Yarn Weight(4) Medium Weight/Worsted Weight and Aran (16-20 stitches to 4 inches)