Vortex Valve

Little Wishes Toys & Gifts

$1.95 
SKU: 9415849416065

The vortex valve is a designed to demonstrate how a tornado swirls.

With a flick of the wrist a tornado in a bottle is created. Scientific fun. Now supplied with two ‘0-ring’ seals to protect against leakage.

Please note: 2 empty soft drink bottles required.

Age: 4 years +