The original four-sided knitting needle. Kollage Square™ Ergonomic Knitting Needles help relieve pain and tension in wrists and hands and create more uniform stitches! Squares™ feature smooth joins and precise points. A square needle decreases contact stress by giving your fingers a flat surface to rest on while knitting. This is different from a traditionally-shaped round needle, which forces your fingers to rest on a smaller, convex-shaped surface area. This tension caused by a round needle can result in poor circulation and impaired nerves. Reportedly, a Square™ needle can significantly help reduce this pain.