LEGO Red Hinge Plate 1 x 2 Locking with Single Finger on End Vertical without Bottom Groove (44301 / 49715)

LEGO Red Hinge Plate 1 x 2 Locking with Single Finger on End Vertical without Bottom Groove has been used in at least 39 LEGO sets over the past 20 years, since it was first used in 2004. You can also find this part in at least 11 other colours. It has the design IDs 44301, 49715 which can usually be found molded into the bottom of the part.