This arm warmer uses increases and decreases to get achieve the shape of this design. I had never done either of those until this arm warmer so a beginner can definetly give it a whirl.

Needle Size: 10.5 us / 6.5mm

Finished Size = 6 inches wide by 8 1/2 inches high (but can increase by completing more rows)
Needle Size = 10.5 US
Yards of Yarn = 60-75 yards

The underside is a slip stitch pattern which makes it nice and secure but extremely comfortable. You can go in and out of it all winter and it will be just as durable as when you first make it. I use it on ALL my arm warmers because i’ve used other patterns that did the opposite.