Definitely suitable for lightweight cats
It seems you requested a translation from German to "Irish" but marked the target language with the British flag (🇬🇧), which usually indicates English. If you intended Irish (Gaeilge), please clarify. For now, I will provide the translation into English (UK):
It’s sturdy enough for small, lighter cats. No problems so far and we use them in every room as climbing wall accessories.
Since we’re generally very careful, we added small brackets underneath afterwards for extra reinforcement. Nothing had happened, but it helps with durability and gives us peace of mind. We love using them as climbing wall add-ons and the cats love them too.