The set very professionally comes from - but I wonder why was a longitudinal slotted screwdriver doing ?! Soon also showed why the previous reviews were on scolding: the Phillips screwdriver are simply too narrow and turn the screw by! Is After further experiments, the edges are worn by the screwdriver so that not to think of to continue working. The suction cup has only partially works: When strong pull ring is pulled out smoothly. Conclusion: I bought a high-quality precision mechanics set and can finish the work with delay. So the set needs no!