Duplo Plate 2 x 4 x 1/3 with 4 Center Studs [Thin]

Reference

4121

Duplo Plate 2 x 4 x 1/3 with 4 Center Studs [Thin] (part 4121) is a LEGO element. It appears in 22 sets, including Airport and Betsy's Bedroom. It has been produced in 6 different colors.