详细介绍
Reloj de arena líquido con burbujas de aceite y agua, de colores vivos, con movimiento líquido. Juguete sensorial para relajarse.
The Bubble Timer is a beautiful display of physics, surface tension, and geometry! Just turn it over to watch the colored liquid displace the air in the bottom bulb, creating more geometric bubbles every time! Takes approximately one minute. Color may vary.
