SONGMICS corner joint

This is a replacement part for the corner joints easy to break in this popular item from SONGMICS: https://www.amazon.it/gp/product/B00N8HUBZ6/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=sl1&tag=ed2ybiz-21&linkId=f36a4d8677f1fe78363b00efc324de9a&language=en_US
Guess it can fit most of SONGMICCS similar furniture as well as other brands similar furniture, just measure tube diameter to be 12mm.

Lateral open frame idea is to reduce material and allow ease of fitting for the tubes as well as less breaking when in use.

Have to say that this item solves for the only problem with this piece of furniture.