The Ranad-Ek Lek is a melodic percussive instrument that produces beautiful soft resonant musical sounds. It was created during the reign of King Mongkut (Rama IV) to add into the original Pii Pat Mahori ensemble, mixed into the ensemble making the Paired-instrument ensemble to become the Grand Pii Pat Mahori ensemble. The Ranad-Ek Lek has a function to be played in harmony with the wooden Ranad-Ek for more beautiful and joyful music.
         The Ranad-Ek Lek has 3 main component parts.
         1. Luk Ranad (musical slats) have been originally made of brass or bronze beaten or molded into the desired shape with different sizes, the same as the wooden Ranad-Ek. There are 21-22 musical slats. The pitch is tuned by filing or shaving the underside of each slat. The Luk Ranad that produces the lowest pitch (called Luk Tuan) is about 23.5 centimeters long and 5 centimeters wide. While the Luk Ranad that produces the highest pitch (called Luk Yod) is about 19 centimeters long and 4 centimeters wide.
         2. Rang Ranad (the trough stand) is made of various kinds of hard wood. Usually the same material as used to produce the stand of the wooden Ranad-Ek is used for beauty and fitting in a set. The Rang Ranad is made into a rectangular box with the wider upper part laid over with tracks made of soft wood. However, at present thin rubber strips are widely used along the length of the box to support the Luk Ranad (musical slats) instead of tying the musical slats with cords like in the wooden Ranad-Ek. The feet of the Rang Ranad are fixed with small wheels for easy transportation of the heavy metallic Ranad.
         3. The playing sticks: The handle is made of mature bamboo stick, the same as the playing sticks of the wooden Ranad-Ek, but with bigger size. One end of the handle is inserted into the thick circular leather plate, similar to the playing stick of the Kong (Gong) but is thinner.