Ball science lab
weight:16g/bag
color:red,yellow,blue,orange,purple,green
function:make power balls in coolcrystal colors

Ball science lab
weight:16g/bag
color:red,yellow,blue,orange,purple,green
function:make power balls in coolcrystal colors

this is easy to use kitincludes everything needed to make bouncing balls

way for function:

1)close the two hemisphere of the mold and fill it's volume 95% with sand;

2)immerse the mold into water for 20-40seconds

3)take the mold out and put it down for 3-5 minutes

4)open the mold and form a jump ball

packing:each sets in pvc bottle

144set/ctn