This is an Infinity Chord, which is a knit chord using scrap yarn from different yarn from 3D knit projects that are two small amounts to industrially knit with seamed together to be a closed loop. 

This Infinity loop is a size large which is approximately 7 in / 18 cm in diameter. Each Infinity chord is unique and handmade so the colors and sizes may vary per piece. The diverse and unique color combination of yarns and materials is called Green Bromeliad Birthday Party  and is a blend of custom dyed wool, and nylon. 

This can be hand washed and air dried but should not be put in the washing machine, there is a chance it could shrink and felt in the wash altering and changing its form.