mm x inch x mm
20 × 1/2″ × 20
25 × 3/4″ × 25
32 × 1″ × 32
40 × 1.1/4″ × 40
50 × 1.1/2″ × 50
63 × 2″ × 63
75 × 2.1/2″ × 75
90 × 3″ × 90
110 × 4″ × 110