Features: It is made of high quality aluminum, rust-proof and durable. With many different sized needles, it is essential for knitting sweaters and scarves. The needles are interchangeable, the cable can be extended using connecting tools if it is not long enough, it can meet the needs of a variety of knitting. The needle tips are durable and lightweight, your hand will not feel any pain even for hours of knitting. There is a PU bag in this set, it can safely store and protect your needles. Specifications: Material: Aluminum Weight: About 325g or 11.5oz Packing: PU bag Needle size: 2.75mm or 3.25mm or 3.5mm or 3.75mm or 4mm or 4. 5mm or 5mm or 5.5mm or 6mm or 7mm or 8mm or 9mm or 10mm Cable Length: Approx. 32cm or 12.6in 38cm or 15in 42.5cm or 16.7 inch 55cm or 21.7inch Package List: 13 x Pairs of Aluminum Needles 4 x Round Plastic Threads 4 x Position Buttons 1 x Correction Tool 1 x Mini Wrench 1 x Extended Connection Tool 1 x Bag PU Note: Please allow slight measuring deviation due to manual measurement.