This animal graphic shows a manta ray on a heartbeat ECG pulse line frequency. Ideal for people who love special sea creatures, such as the eagle ray or stingray. Discover the ocean sea life of the manta ray or devil ray. This cool design is suitable for special occasions, such as diving, freediving, scuba diving and apnea diving. Excellent for snorkelers, apnea divers and freedivers who discover sea creatures, such as the Reef Manta, Giant Manta & Myliobatidae. Lightweight, Classic fit, Double-needle sleeve and bottom hem