What does the pong pong seeds looks like?

Pong pong seeds, also known as Cerbera odollam seeds, are typically round to oval in shape and have a smooth, hard outer shell. They are usually about 3 to 5 centimeters in diameter and can be light brown to dark brown in color. The seeds are often mistaken for small stones due to their appearance and weight. Additionally, they contain a toxic compound, making them hazardous if ingested.