A large scarlet ball and a round dance of smaller ballsA large scarlet ball and a round dance of smaller balls
A large black ball surrounded by small glowing cookie ballsA large black ball surrounded by small glowing cookie balls
Bright green illustration in a graph of balls of different sizesBright green illustration in a graph of balls of different sizes
Сплошной или полый внутри шар из упругого материала, отскакивающий при падении от твёрдой поверхности.