This little brass hip flask packs a wallop. To remove the lid and solve the puzzle, you'll need to navigate a hidden maze and perhaps discover secret tools that help you reach your goal. The Hip Flask puzzle can be extremely challenging but luckily, it's almost as fun to fidget with as it is to solve. Machined from solid brass, the metal is left unfinished and will develop an attractive patina over time. Designed and manufactured by Felix Ure of England. Measures approximately 3" tall by 4" wide.