Dimensions for size are  16″ x 3″ x 16″   41 cm x 8 cm x 41 cm

Dimensions for size are  20″ x 3″ x 20″    51 cm x 8 cm x 51 cm

Dimensions for size are  24″ x 3″ x 24″   61 cm x 8 cm x 61 cm

Dimensions for size are  32″ x 3″ x 32″   81 cm x 8 cm x 81 cm