My kids love sensory toys & these are a nice asset to their collection. They found out that they glow in the dark too. Win!Cool but won't come back down from ceiling. My daughter and I have tried so many way to make them less stickyThey work nice my daughter plays with them all day !! They are a little sticky at first, but after awhile they worked perfectly !You get one good use out of each ball. The stick wears off quickly. Even quicker once if it falls on the floor. Good product but expensive for one use. Don’t expect to have for long.My son loved themThey are supposed to stick to walls and ceiling but they are not sticky at all I bought these for my daughter.she has ADHD and loves fidget toys. She was very disappointed. They do glow in the dark but not fun when they don't stick like they're supposed to.This has help my child tremendously with her behavioral issues. She enjoys the texture and that they glow.My son really liked them! One has been stuck to our wall for days?