This bracelet has a real scarlet plant bug encased in an oval acrylic with a clear background with adjustable cord. The length of adjustable cord is 6 1/2 to 10 in. It is easy to adjust by pulling the cord where it joins and adjust to the desired size. The acrylic size is 1 1/4 x 7/8 x 1/2 in. Each specimen is unique and different and may differ from the picture shown.