Lu Ban ruler was summed up with a thousand lifetimes to measure bad and good in feng shui houses, furniture, repaired houses or repaired objects to bring many talents to with family more.The use of Lu Ban ruler to repair or carpentry furniture such as cabinets, ordinary chairs, ... the owner can completely choose the beautiful size, fortune, "golden parameters" exactly as the owner wants.Now the hole - the quintessence of the master of carpentry and construction of the vast Chinese nation of thousands of years ago, was put on your smartphone, to help you absolutely not have to carry trees. practical size that can conveniently use your smartphone every time you need it.Lu Lu Ban will give you the best-defined steps to give you the most suitable numbers for your landlord.Application of Lu Ban Rulers integrating rulers:+ Lu Ban Ruler 52cm - Use in Architecture & Construction to measure clear passage, light ...+ Ruler of Lu Ban 42.9cm - Used in Duong Trach - size for objects, shapes ...+ Lu Ban 39cm - Use in issues related to the Part - Altar, grave, grave ...