Numbers 4:6

4:6 Then they must put over it a covering of fine leather and spread over that a cloth entirely of blue, and then they must insert its poles.

Numbers 4:10

4:10 Then they must put it with all its utensils in a covering of fine leather, and put it on a carrying beam.

Numbers 31:20

31:20 You must purify each garment and everything that is made of skin, everything made of goat’s hair, and everything made of wood.”