This iconic Highland Cow brooch made from laser cut beechwood wood and hand wrapped in mainly native sheep wool blends although baby alpaca, silk and plant based materials are sometimes used. These are hand dyed, carded and blended. 
Each brooch measures 3 cm's x 5 cm's and has a safety catch pin on the reverse.
Multi blends will vary due to the nature of the dying process. I have put examples of a few variants.