In what did Moses' mother place him in the Nile?

Answer: A basket of reeds

She got a papyrus basket, coated it with tar and pitch, and placed Moses in it.

“But when she could no longer hide him, she got him a papyrus basket and coated it with tar and pitch. Then she placed the child in the basket and set it among the reeds along the bank of the Nile.”— Exodus 2:3 (BSB)