The Addi Rocket² DPNs are designed for knitters who may experience occasional pain, strain, or grip issues while knitting. The combination of slightly rounded squared edges and a textured needle surface promotes positive ergonomics, stimulates circulation, reduces hand tension, and helps achieve the perfect stitch. This set includes five double-pointed needles that are 8 inches long. Product Details: Slightly rounded squared edges for in-hand comfort Textured needle surface that promotes comfort while knitting, stitch security, and even stitches Includes five double-pointed needles that are 8 inches in length Please note that traditional needle gauge rulers are not compatible due to the unique shape of these needles.