The interchangeable circular needles from the popular KnitPro Symfonie series are made from laminated birch wood, which makes for very strong and durable knitting needles. Birch wood is a really nice and durable natural material. The knitting needles are comfortable to hold as the birch wood does not feel cold in the hands. The needles don't weigh much, as birch wood is also a lightweight material. The knitting needles are therefore delightful to knit with – even for many hours at a stretch.

The knitting needles in the Symfonie series are multicolored, as they are painted in a mix of yellow, red, blue, and green shades. The knitting needles are beautiful to look at and have a lacquered surface with a matte finish. Even though they are matte, they are finely polished with a smooth and glossy surface. The yarn and stitches, therefore, glide easily on the knitting needles. 

The interchangeable circular needles are suitable for both beginners and experienced knitters who want a lovely and durable knitting needle that doesn't weigh much in the hands. The needles are ideal for all types of knitting projects, as they can be used for both circular knitting and back-and-forth knitting.

The interchangeable circular needles come in sizes from 3 to 15 mm and have wires in several different lengths – both short and long. The advantage of interchangeable circular needles is that you can easily build exactly the Circular Needle you need for each knitting project, and if you need to change needle size or length along the way, you can easily build exactly the needle you are missing without having to move your knitting project to a completely new Circular Needle.

KnitPro is one of the leading producers of knitting needles and crochet hooks. In the Symfonie series, there are both straight needles, circular needles, interchangeable circular needles, and double-pointed needles as well as crochet hooks.