The color white (hedj and shesep) suggested omnipotence and purity. Due to its lack of color white was also the color of simple and sacred things. The name of the holy city of Memphis meant "White Walls." White sandals were worn at holy ceremonies. The material most commonly used for ritual objects such as small ceremonial bowls and even the embalming table for the Apis Bulls in Memphis was white alabaster. White was also the heraldic color of Upper Egypt. The "Nefer", the crown of Upper Egypt was white, even though originally is was probably made of green reeds.