These adapters are a very nice product and outwit their price range. I dise adapter used every day for my two-month aufentalt in Canada. You have supper but works for lengere aufentalte these adapters are not intended. After approximately within 1 1/2 months of the first adapter has eye give one of the two prongs in the socket I stab remained muste him with pliers again and pull out the teeth of the other adapter also already start to wiggle that may be because I they really have used very intensively, pulled about 20-30 times a day in and Rauss. So who is looking for a holiday or other adapter where the plug is not so heavily used should here access to these connectors offer for its price a super quality.