LEGO part 32557 - Dark Gray Technic, Pin Connector Perpendicular Double 3L at BrickScout
LEGO 87408pb001 Black Technic, Pin Connector Toggle Joint Smooth Double with Axle and Pin Holes with Yellow Warning Sign Pattern (Sticker) - Set 42082 | electricBricks : LEGO set and parts shop and database
Bloques de construcción de alta tecnología, 10 piezas, conector Perpendicular largo MOC, pieza 32557, 2x3 pines, Compatible con bloques Lego|Bloques| - AliExpress