A beautiful and captivating mechanical puzzle composed of four identical pieces of stainless steel. The Tetra Puzzle is a fascinating and immersive challenge to understand and unlock. It activates your spatial reasoning and manual dexterity skills in a way that's deeply engaging. On first glance it might seem fairly straightforward; in reality it's anything but intuitive. Solving it requires focus, attention, and an exploratory mindset. It pushes your boundaries and invites you to learn something new. Beyond its allure as a meditative object, it's incredible to watch friends discover the magic for themselves. Whether or not you provide hints is up to you. Specifications * Four identical pieces * 1.5 lbs * 2.9" x 2.9" x 2.5" * Brushed Stainless Steel or PVD Black coated Stainless Steel finishes * Vapor Black coating is ultra-durable and scratch resistant * Designed by Revision for Craighill