Artist Made Kaleidoscopes, "Study" By Artist Judith Paul.
The body of the kaleidoscope is made of A durable black powder coat and vinyl studied wrap. There is a nicely made black plastic piece that snaps in to hold the cell and unsnaps to allow cells to be changed in and out. The eyepiece Body and Object cell housing are Aluminum and are powder coated. 2 mirror system and oil filled cell. The oil filled cell is interchangeable does indeed come with one puck as shown here.
Solid Metal and Durable Powder coat Exterior Construction
Oil Filled Colorful Interchangeable Object Cell
Each puck is 2 1/4 inches in diameter by 7/8 inches thick.