0.39" Element Cube Set 10mm Density Cubes Copper Iron Bismuth Titanium for Periodic Table Collection Up to 99.99% Purity (0.39“, 9-01)

The cubes are great quality.There initially was a mistake with my order, but Magerial's customer service took care of fixing it promptly, which is greatly appreciated.

This company makes great quality element cubes for collecting. I plan to get as many as I can! At 1 cm each they are small but still fun to collect. Mine came with the lead (Pb) which I was happy to see. For real fun buy this set and another that has tungsten (W). The tungsten is almost twice the density of the lead! I noticed the lead is getting a bit rounded, so I now keep it separate until I receive the acrylic cube these folks also sell. The laser etching on the iron (Fe) looks like it might already be oxidizing which I feel makes it look more interesting. The copper (Cu) is brushed and was very shiny when it showed up but is a bit dirty looking after handling it.

Very nice product and idea…Thanks

It's a nice set. I purchased a "used - like new" set from the warehouse, and it must have been an older set with lead instead of bismuth. A little disappointing, since it's a gift for my 13-yr-old. It's okay, though. He asked for a tungsten cube, anyway, so I just swapped out the poisonous-brain-damage cube for the oh-my-god-this-is-freaking-heavy cube.

Super cool little gift for the STEM kid. Has most of them in it. Will last forever. They are small but when you get them all it makes a nice little display and conversation piece.

Pretty neat but pretty small cubes.

These are really cool pieces to have and could be really cool for science classes

These nine element cubes are great for science learning so that kids can hold an actual piece of copper, lead, iron, etc. They come with a little plastic box, so that's good to keep them together. NOT for little kids as the cubes are very small. I purchased these for a very bright and careful 8 yr. old along with a book and poster about the elements.