Colin is good for glass cleaning and I use also colin befor bought this new pack .
But now this new pack not working and clean glaas well spot are same after clean now colin left marks of spots a
And clean like a baar .
Its very bad liquied in this pack .
Same brand same pack but now working .so its very bad .
I want returened this but how .shopkeeper says its good and I dont return this .and I dont how can do this