𝐏𝐫𝐞𝐦𝐢𝐮𝐦 𝐚𝐥𝐮𝐦𝐢𝐧𝐮𝐦 𝐦𝐚𝐭𝐞𝐫𝐢𝐚𝐥: The Interchangeable Circular Knitting Needles Set is made of premium aluminum material, which is not easy to rust and feels comfortable and durablily 𝐕𝐚𝐫𝐢𝐨𝐮𝐬 𝐬𝐢𝐳𝐞𝐬: The Aluminum Circular Knitting Set includes 13 different sizes of knitting needles, which are suitable for knitting various personal items. The unique design reduces hand fatigue 𝐅𝐥𝐞𝐱𝐢𝐛𝐥𝐞 𝐞𝐱𝐭𝐞𝐧𝐬𝐢𝐨𝐧: The Interchangeable Circular Knitting Needles Set provides four extension cords of different lengths. If the length is not enough, you can also use the connection tool to extend the cable 𝐃𝐮𝐫𝐚𝐛𝐥𝐢𝐥𝐲 𝐬𝐭𝐨𝐫𝐚𝐠𝐞 𝐛𝐨𝐱: The Aluminum Circular Knitting Set comes with a needle storage box made of polyurethane material, which helps you neatly store and protect knitting needles, avoiding accidental loss or damage 𝐂𝐮𝐬𝐭𝐨𝐦𝐞𝐫 𝐒𝐞𝐫𝐯𝐢𝐜𝐞: We promise to provide premium products and offer a satisfaction guarantee. If you encounter any problems during use, please feel free to contact us, and we will solve them for you properly