Knitting needles made of carbonized bamboo, mold-proof, free from rough edges, smooth surface makes knitting comfortable and fast. SIZES: These bamboo knitting needles are 25 cm/9.84 inches, 36 cm/14.17 inches long and 18 different sizes 2mm/2.25mm/2.5mm/2.75mm/3.0mm/3.25mm/3.5mm/3.75mm/4.0mm/4.5mm/5.0mm/5.5mm/6.0mm/6.5mm/7mm/8mm/9mm/10.0mm for your choice. Carbonized bamboo knitting needles are lightweight. Easy on the hands and quiet. They feel thinner than aluminum needles, in fact, they hold the yarn much better. Single-pointed needles in lightweight material provide tension reduction and thumb support; effectively prevent needle leakage. Set includes the most popular sizes to get you started on some basic projects. Continue knitting.