Was actually pleasantly suprised when this arrived. Decals - actually like thick stickers have a very attractive pale blue design on them that are quite attractive in daylight. Large moons, planets & numerous small pieces stick easily to smooth surfaces - only reason for three stars would be pieces particularly smaller one are a little difficult to remove from packaging. Overall the effect is really cute day or night - just takes a little effort to install. That being said - the amount of decals for the cost is a great value - just be ready to spend some time removing the pieces! Would recommend for patient parents.