This standard size bobble hat is hand knitted in the round (meaning no seam!) with an attached bobble using the same wool. The acrylic wool is self patterned with yellow, purple, orange, lilac and some light green tinted wool.
 
The bottom edge circumfence is 56 cm. It can stretch quite a bit, meaning it can fit a good number of head sizes.
Length from edge to bobble is 19cm.