Features: 1.Made of high quality carbonized bamboo material which is durable, smooth and lightweight while iron tips are plated, which is anti-corrosive and sturdy 2.As there are different sizes available, they glide great with several different types of thread and yarn 3.The purple zippered bag keeps them organized and secure 4.As indentation parts of round needles are a little rough, better sand them down before using them 5.Great handy sewing tools for you specification:Description: These crochet knitting needles is made of high quality bamboo material which is durable and smooth in your hands. It Includes 20 individual crochet hooks to fulfill different needs, working great for creating beautiful patterns of crochet. What are you waiting for? Get this versatile case and fulfill your crochet project! 1. Made of high quality carbonized bamboo material which is durable, smooth and lightweight while iron tips are plated, which is anti-corrosive and sturdy. 2. As there are different sizes available, they glide great with several different types of thread and yarn. 3. The purple zippered bag keeps them organized and secure. 4. As indentation parts of round needles are a little rough, better sand them down before using them. 5. Great handy sewing tools for you. : Material: Carbonized Bamboo + Plated Iron Color: As shown in the pictures Bamboo Handle Needles with iron tips: Length: approx. 13cm / 5.11" Needle Diameter: 1.0mm / 0.04" 1.25mm / 0.05" 1.5mm / 0.06" 1.75mm / 0.07" 2.0mm / 0.08" 2.25mm / 0.09" 2.5mm / 0.10" 2.75mm / 0.11" Bamboo Needles: Length: approx. 15cm / 5.90" Diameter: 3.0mm / 0.12" 3.5mm / 0.14" 4.0mm / 0.16" 4.5mm / 0.18" 5.0mm / 0.20" 5.5mm / 0.22" 6.0mm / 0.24" 6.5mm / 0.26" 7.0mm / 0.28" 8.0mm / 0.31" 9.0mm / 0.35" 10mm / 0.39" Pouch Size: approx. 16 x 14 x 3cm / 6.30" x 5.51" x 1.18" Package Weight: approx. 165g Quantity: 20pcs / set Package Includes: 8 x bamboo handle needles with metal tip 12 x bamboo needles 1 x pouch case