The Hip-Flask puzzle by Felix Ure is the second of his designs. The aim is to remove the lid from the flask.
A multi stage, sequential discovery puzzle this is perhaps not as hard as Titan but most will still find it tough to solve.
Made in the UK the Hip-Flask is machined from solid brass which is left unfinished so it will slowly patinate and darken with use. It weighs an impressive 750g and 72mm tall.