Trick Bolt #1 Puzzle

Made from brass with a sturdy, weighty feel and an aged finish, Trick Bolt #1 looks straightforward but hides a clever mechanism. The challenge is to remove the nut from the bolt and free the ring without using tools or force. What appears to be an ordinary piece of hardware is not quite what it seems, making this a compact mechanical puzzle with a satisfying secret to discover. 

Object: Remove the nut and free the ring
Difficulty: 7/10, Challenging
Material: Brass
Dimensions: 3 × 2.7 × 7.7 cm
Brand: Puzzle Maste