Zero chance that'll convert voltage. It's a fused plug adapter, with a 2.5 amp fuse in it. As Watts = Amps x voltage, that means it's got a different maximum watts depending on the voltage, which is why it has 2 separate entries for 110 volts and 230 volts.
The fuse is required because it supports UK sockets. For historic reasons, most UK plugs need to include a fuse in them. As the device you'll be plugging in using this adapter doesn't have a fuse, then adapter itself needs to have one.
Originally Posted by
freecia
Does it look like this Skross adapter?
It's definitely not a Skross. It's missing multiple of the things a Skross plug would have printed on it (starting with the brand/model, but also things like the "CE" approval markings.)