The box is made out of a light brown wood and is shaped like a hexagon. The box contains six sides with each side having two dark coloured buttons with an animal symbol in the center vertically aligned. The lid of the box has a dark brown design with the symbol of the Order of the Guardians surrounded by patterns in the middle with Native American designs at the edges. The box includes twelve drawers where more Miraculouses are being stored.
Inside the box, on the top level, there is a square divided into four sections with a circular center and a gold outline. In each section of the square and the circle is a Miraculous: wolf, bear, bison, eagle and Thunderbird.
Each section has a different color with a darker-shaded circled symbol in the center. The section opposite of the lid's hinge is red with a darker eagle symbol, which is where the Eagle Miraculous is placed. The left section is black with a symbol. The right section is yellow with a dark symbol. The upper section is white with a darker buffalo symbol, which is where the Buffalo Miraculous is placed. The central section is turquoise with a dark thunderbird symbol, which is where the Thunderbird Miraculous is placed.
This is the second Miracle Box to appear, after the Chinese Miracle Box that is currently in Marinette Dupain-Cheng's possession.
The four outer sections of the top compartment are based on and correspond to the four sacred mountains of Navajo culture, themselves responding to the cardinal directions (North, South, East, and West).
These mountains, and other similar sacred quartets in various Native American cultures, are typically assigned one of four colors: Black, White, Yellow, and Blue (which has been replaced by Red).
The center's color likely refers to the extensive use of turquoise stone in Native American jewelry.
The exterior design of the box strongly resembles the previous design of the Chinese Miracle Box.
A total of seven of the jewels and kwamis in the Miracle Box are based off a type of bird.