Conforming delivery. The first uses were stunning efficiency. The disappointment came when the cleaning pad of the big brush pen (spiked) disassociated himself from the plastic base. Finally forced to screw it to continue to use it. The small brush trip is not bad, a little stronger. When the sticky stick, after a few uses, it has lost some of its effectiveness despite regular cleanings. Finally a little disappointed by the product. Not necessarily recommend or so for a very occasional use.