Small box of hollow polystyrene balls.
This price Includes shipping to the USA.
5 balls @ 200 mm diameter. - each supplied in 2 hollow halves.
2 balls @ 250 mm diameter. - each supplied in 2 hollow halves.
These moulded polystyrene balls are regularly used by laboratories, schools and universities for design, science and research projects due to their accurate size and shape, as well as their higher density.
The 150mm, 200mm and 250mm balls nest almost perfectly.
Manufactured from expanded polystyrene containing a flame retarding additive.