The tree has large bright green elliptical leaves. The fruit is borne on stalks that arise opposite an unpaired leaf. The fruit starts out as a small lump that swells, produces flowers, then forms into the fruit, which looked to me like a small custard apple. The surface of the fruit has many polygonal sections, just like a custard apple. The size and shape of the fruit vary considerably.
Some fruit are very small and hard and go brown without ripening.
These are not good quality and reputable processors reject this fruit. Most of the fruit is wild harvested. The tree fruits all year round. As the fruit is picked, the tree produces more fruit. It really is quite amazing.