The little letter reached me 3 working days after ordering. That's perfectly okay copy of the letter was the welded screen protector and a guide. The film is quite thick, which is but probably because of the perfect quality. The surface of the Navis was glued as described above and then cleaned as described in the instructions. That was a little tricky, but has worked without problems the first time around. Then again leveled by means of a credit card and completed was the Navi. Fingerprints wipe away easily. Despite the slightly thicker foil the Navi is extremely sensitive to touch and is therefore in my recommendations as protection from scratches 5 star value.