Round Aluminum Knitting Needles: This cable knitting needles includes 13 pairs of 4 inch (10cm) aluminum circular knitting needles with sizes ranging from 3.0mm to 10mm – perfect for all your knitting projects. Premium Quality and Durability: These round knitting needles made of lightweight aluminum, these needles are rust-free and durable, designed to last for years of use. The non-slip pad and 15 randomly colored markers are perfect for easy tracking. Versatile Cables: The interchangeable kntting needle set come with 4 cables of different lengths (15.7inches, 23.6 inches, 31.5inches, 39.4inches), 2 couplers, and 2 cable keys, this set provi