Pity a part was missing from the original package because it was delivered in 2 days and was well packed. So 5 stars was missed that would otherwise have been deserved. I think that 4 stars are deserved for effort because a free of charge replacement part was despatched immediately. Unfortunately the carrier let Cleva down by mislaying the replacement. So because Cleva waited several more days before dispatching a further replacement I can only award 3 stars because as a customer who had already paid for the product I just wanted it sorted immediately. As it turned out the judgement of Cleva was right because both replacements eventually turned up, but quicker would have been better. But at the end of all that I'm glad I bought these products.