Set of 10 pairs. 2 pairs are approx, 2 1/2 X 3 3/4 adjustable sides X 1 in. can adjust up to 6 inches. 2 pairs are approx. 1 X 1 3/4 adjust able sides, X 1 in. 4 pair are approx. 3/4 X 1 adjustable sides X 1 in.  Used. No brand name but made by J.A. Bee Plastics in Elwood Indiana.