MagNaturals 37090 Mushroom Ledge, Large

It is sturdy and the magnets are strong. However, the item does not look at all like what is pictured. Further, whatever material it is made with kind of has this crumbly black residue when you touch it.

This magnetic reptile rock was a phenomenal purchase.

This was my second one, I love them and so does my snake! They are great and you can move them around which is awesome!

Item in the box I received does not match the item on the product photo.

I bought a few magnatural ledges to create a second level for my hermit crabs in my 55 gallon aquarium (1/4 inch thick glass). They work great and the crabs love them! They climb all over them in the night, and sleep on them during the day. The large one holds them all even when 8-12 of them pile on. It definitely can hold two pounds, as advertised.What I like best about them is that they aren't permanent. It's so easy to rearrange them without having to deal with glue or tape. The magnets are strong. I'm very happy that I found such an easy way to maximize the space in my tank.