Size Chart Bubble-free

Size guide preview (Imperial)
Height
Width
3″×3″
3
3
4″×4″
4
4
5.5″×5.5″
5 ½
5 ½
Size guide preview (Metric)
Height
Width
3″×3″
7.5
7.5
4″×4″
10
10
5.5″×5.5″
14
14