No, no, no! In the description, is these holders would carry up to 3.5kg. No Chance !!! I have speakers attached thereto, have just just 2kg (Canton Plus XL 3.0) and the brackets incl hung speakers -. In the truest sense of the word - just by! Not recommendable. For small satellite speakers, the holders may perhaps be appropriate, but please do not rely on the description. The toothed ball system holds nothing!