Source One Large Deluxe 6,7,8 Inch 3 Piece Set Clear Acrylic Heavy Duty Risers with Handles Thick DeluxeRisers with Handles small is 6 x 6 x 4 Inch tall medium is 7 x 6 x 5 and Large is 8 x 6 x 6 Seen In Better Hotels and Resorts Nationwide 3 Piece set ( 1 each size )