This is a wonderful small Slider Kaleidoscope by Koji Yamami. These scopes come in a varity of colors in anodized metal which gives them a satiny look. The object slider is fluid-filled and has small beads and trinkets and the scopes have a 2-mirror 8-point system. These scopes measure 3-5/8"L x 5/8" in diameter. The slider is 2"L and 9/16" in diameter. Please call the store prior to placing your order to determine which colors we currently have in stock.