The figure you have is aVastatosaurus rex (V-Rex) mini-figure produced by Kaiyodo. It was part of a limited King Kong movie collection released in 2005, primarily as a bottle cap figure in Japan
Manufacturer:Kaiyodo
Character:Vastatosaurus rex (a fictional dinosaur from the 2005King Kongfilm)
Size:The figures are miniature models, typically around 2 inches in size.
These were a limited edition item, often released as bottle cap toppers for drinks, and have since been discontinued. They are popular collectibles.
