This product includes a total of ONE 2" x 6" x 6" HDPE (High Density Polyethylene) block in Natural color.
All the blocks are injection molded and as such are machine grade quality.
High-Density
Polyethylene (HDPE) is a relatively lightweight, strong, and resistant
material.
It is one of the most widely used plastics in the world,
largely due to its resistance to water and corrosive chemicals.
HDPE
doesn't leech, meaning it is the perfect candidate to hold chemical
solutions often found in households such as bleach.