What is a Sock Yarn Blank?  Here is a description by the creators at Sweet Georgia Yarns: 

Gradients are ever-so-fun in our line of SweetGeorgia Sock Yarn Blanks, especially when they feature some of our signature colours.

These machine-knit stockinette stitch tubes allow the hues to flow from one shade to another seamlessly throughout your project. No ends to weave in and no yarn to wind means a no-fuss, ready-to-go project for the gradient-loving maker!

*****

Sock blanks come machine knit in a stockinette stitch tube. To work, all you need to do is to pull one end from the tube to unravel. You can work straight from the tube or wind it into a ball/cake.

These provide a unique way to dye colour gradients seamlessly as the dyeing is applied directly to the machine knitted fabric.

Knitting or crocheting from a sock blank is “crinkly,” but the crinkles block out neatly. A good soak or long steam produces a smooth, beautiful finish.  The whole thing gives a really magical color-changing experience.

Sweet Georgia Yarns has a sock blank video tutorial to show you how easy a sock blank is to use!

*****

This colorway is called Maple and perfect for this time of year. 

Again I quote Sweet Georgia: 

If you’re quiet, you can hear the soft whisper of the crackling fire as it warms the night air. It’s so easy to lose ourselves in the dancing flames of orange and gold, using the dark wood below as their stage. The cozy fireside colours of Maple stoke the embers in our own hearts with every stitch we make....

I see rich red into red-orange into orange into gold into cream into rich loam.  

This is a limited edition colorway that will allow you to knit from one end to the other with no ends to finish and a smoooooooth transition of color. 

Beautiful!