What should I say? For the price you get two original Canon Walimex. The Walimax adjusts the Canon lens 18-135mm 3.5-5.6 EF-S IS STM and does his duty. It is also not too large, as that one sees in the shadows in the corners of wide-angle, which goes beyond the usual measure of the lens without the lens hood.
The only question is how long will the noses, fix the sun visor on the lens in the final position? The only time will tell.