A rattle in diving is a piece of equipment designed to get attention by making a rattling sound. It is usually a hollowed tube with both ends plugged and containing metal balls. Shaking it create a sound from the shock of the balls.
A rattle in diving is a piece of equipment designed to get attention by making a rattling sound. It is usually a hollowed tube with both ends plugged and containing metal balls. Shaking it create a sound from the shock of the balls.