Calvin's 3x3x5 Cuboid — large functional cuboid for a more serious challenge

Calvin's 3×3×5 Cuboid is a fully functional cuboid with an uneven number of layers. It is non-magnetic, often listed around 95–98 mm tall in specifications, weighs about 160 g without packaging, and comes in a clear plastic box.

Who this cuboid is for

• For solvers who already know 3×3 and want cuboid logic.
• For people who want a bigger challenge than 2×2×3 or 3×3×4.
• For collectors of Calvin's cuboid models.
• Not an ideal first cuboid for a small child.

Turning feel

• The turning is good for a large cuboid, but not made for rough speedsolving.
• Equal-sized cubies on all sides give a clean look.
• Because of the 5-layer height, careful alignment is needed.

Magnets and mechanism

• No magnets.
• The fully functional 3×3×5 mechanism allows real cuboid moves.
• The puzzle should be handled carefully because thin internal parts do not like being forced.

Size, weight and materials

• Format: 3×3×5 cuboid.
• Dimensions: often listed around 95 × 68 × 68 mm or 98 × 66.5 × 62.5 mm, depending on measurement.
• Weight: about 160 g without packaging.
• Surface: black body with stickers or stickerless version, depending on variant.

Main advantages

• Serious cuboid challenge with 5 layers.
• Fully functional construction.
• Good next step after simpler cuboid puzzles.
• Comes in a practical plastic box.

Things to keep in mind

• No magnets.
• Does not like rough turning.
• Requires different algorithms and tricks from a regular 3×3 cube.

How to use

Solving requires a cuboid approach: first restore shape and layers, then solve colours and parities. Never force a move if you feel resistance.

Packaging and contents

Comes as one Calvin's 3×3×5 Cuboid in a clear plastic box. Extra accessories are not a key feature of this model.