Peach pits are the hard, stone-like seeds found inside peaches. They are the protective casing for the seed, which is the part of the fruit that can grow into a new peach tree. The pit is typically smooth and oval-shaped, and it can vary in size depending on the variety of peach. While peach pits are not edible and can be toxic if consumed in large quantities due to the presence of amygdalin, they are often used in crafts or as a natural mulch in gardens. Additionally, some people enjoy using them in jewelry or as decorative items.