Pendant is 2 pieces of stainless steel that are joined in a lens shape. Inside this space are 3 small free floating stainless balls and a rubber ring to dampen sound. See larger image for clarity.
1.2" x 1.35" x 0.43" (30x34x11mm)
1.2" x 1.35" x 0.43" (30x34x11mm)