The cover is the correct size for the speaker, but it is very awkward to slide over - especially if, for example, the mains cable is left plugged in. The cut-outs on the side do allow access to the carrying handles of the speaker, but they do not align perfectly - even when the cover is fully down on the speaker, the cut-outs remain slightly high on both sides.
Made from good quality, durable material, and would help to protect the speaker in use.