Did not the same quality as that of the pack

Having purchased the pack a few weeks ago, I bought a refill. What a desappointment! She did not at all the quality of the first, the handle comes off very regularly even when single spin, the strings are thinner ... In short, a great pity that Vileda reluctant quality while the full package was more effective. It then becomes difficult to properly clean the base, it facilitated things well ... Looks like a vulgar Chinese copy.