Stuffing Muan Sarn (Sacred Powders) into the Bia Gae Shell. – The ‘head and tail’ (tips) of the shell are also covered with Muan sarn. This covering of the tips of the shell is called ‘Liam Khao Bia’. and is part of the tradition and Wicha of Bia Gae making of Wat Klang Bang Gaew.. This technique allowed Luang Phu to perform the subsequent phase of insertion of Mercury and covering with metallic housing with much more ease.