Tips:
Over-drying may increase static cling, try to dry shorter time to prevent static cling.
The fiber clothing will cause static very easily, the cotton clothing will not.
When you first use the wool dryer balls, they may shed some fuzzy wool on the clothes, that's very natural. Please wash the fuzzy wool off before use. Or after several use, they will disappear.
You may notice variations in size, color and texture because they are handmade, that's very natural. Please don't worry.