Cardboard refills for camp

Have enough connectors but want some more cardboard shapes? Each cardboard refill box has a minimum of 500 pieces in an assortment of geometric shapes including circles, squares, triangle, rectangles and more.  Pieces will range from one inch circles up to 5" x 10" rectangles.  Each box will have all pieces are white on one side/kraft on the other.  Each kit will supply materials for a group of up to 30 students.  ships in 1-5 days