Search for a value in a column, then modify all the cells contain this value by adding a number to the end

[zack8576]

I am fairly new to VBA. I need to create a macro that searches the entire column K for keywords " C Box", for any cell in this column that contains these keywords, I need to add a numerical value to the end of the text (this numerical is always in the same row as the cell that contains the keywords, but in column L)

for example:
K L
Row 43 C Box 14"
Row 55 C Box 28"

after run the macro, the text in column K becomes C Box 14" on row 43, and C Box 28" on row 55.

Any help would be greatly appreciated !

 

[zack8576]

Image uploaded, the column I am searching is K, which contains all the text values; and all the numerical values are in column L