Causes water flow and produces waves.Six star-shaped sculptures (concave depth 1.5 mm to 1.0 mm) are placed from the center of the body to the tail. From the head to the tail, there are two lateral grooves (depth 1.0 mm) on each of the upper and lower sides. A model with a vortex hole that creates a wave flow by causing a water flow at a position 12 mm (3.0 mm in diameter) / 25 mm (3.5 mm in diameter) to the left of the center of the body.Equipped with vortex technology system.Center balance.Gold phorogramm.S I P GLOW under the body.Thickness : 11.8 mm