Stack Exchange network consists of 177 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Bricks is a question and answer site for LEGO® and building block enthusiasts. It only takes a minute to sign up.
Is this an original LEGO part? Maybe Technic? See the cup for size comparison.
The black one is a playmobil part, used to link fort wall part together. I think the cup is playmobil too.
I don't recognize this part as produced by LEGO. On another thought, pictured black part has rough edges (low quality), which is unheard for LEGO.
Required, but never shown