Knitter's Pride Marblz Interchangeable Circular Needles at Paradise Fibers come in 2 tip lengths. The Normal size is approximately 4 1/2 inches long. The Special tips are approximately 3 1/2 inches long. These are the Normal length and the sizes range from US 4-11 (3.5mm-8mm). The tips are pointy and taper perfectly for all knitting projects. Across the line of Marblz needle types each needle size is a different, vibrant color. The color is determined by the needle size.