Tungsten is a prized transition metal for high-performance, heavy alloys, primarily due to its high density. Though it has a lower relative atomic mass than other heavy metals such as lead, tungsten has a density almost two times greater than lead (19.3g/
Oil-based paint permanent pen for plastic from , the leader in permanent markers.This opaque paint and its xylene-free paint pigments are fade and water resistant.
For this indoor bounce house, it's big enough for 3-4 children jumping at a time, small enough for indoor for the rainy days. This indoor bounce house gives your children lots of working out all year long.