Myriam Does not seem to have read the product description and does not assess correctly the product while only dinattention her fault is the cause:
Yes it is 01 module to a right angle (90 °)
02 Modules to fix on a wall (180)
03 Modules to set on a column or end wall (270 °)
Negative: A little expensive for those it is, but hey after all the design that has a price;)