In 3D

These Sleek Metal Puzzles Are The Best Kind of Brain Teaser

June 19, 2025

Working through a 3D puzzle boosts spatial reasoning, patience, memory, and even stress relief. It’s mindfulness with edges and angles.

Crafted from solid stainless steel, these modern Tetra puzzles are art objects that just so happen to be great brain teasers as well.

Designed by Revision for Craighill, the Tetra has a rounded, futuristic shape and looks quite straightforward, until you try to unlock its form.

Requiring dexterity and an exploratory mindset, it’s a puzzle sure to challenge and delight.

Available for $98 here.

A silver triangular object hovering above a beige background.

A collection of modern, abstract jewelry pieces displayed on white pedestals against a neutral background. — Also available in a range of other shapes.

A modern, abstract metallic sculpture made of interlocking geometric shapes. — Unlocking the shape is the initial challenge

Four abstract metallic sculptures displayed on a white background, showcasing various geometric shapes and angles. — Once apart, how do the pieces go back together?

A metallic puzzle in the shape of a triangular prism with smooth surfaces and segmented sections.

A collection of metallic geometric shapes arranged on a textured gray surface.

A person's hands holding a geometric metallic object on a textured surface.

Discover more from Moss and Fog

Subscribe to get the latest posts sent to your email.

Author Ben VanderVeen

Ben VanderVeen is the founder and editor of Moss & Fog, one of the web’s longest-running visual culture destinations. Since 2009, he’s been finding and framing the most beautiful, surprising, and thought-provoking work in art, architecture, design, and nature — reaching over 325,000 readers each month. He lives in Portland, Oregon.