Sizing Guide:

Round Top:

-Small: 259 mm tall, 120 mm wide
-Regular: 291 mm tall, 135 mm wide
-Large: 324 mm tall, 150 mm wide

Stylized Top:

-Small: 252 mm tall, 120 mm wide
-Regular: 283 mm tall, 135 mm wide
-Large: 315 mm tall, 150 mm wide

Knee Top: height is a combination of the base plus a knee plate with some overlapping

-Small: 252+88 mm tall (approx. 287 mm when combined), 120 mm wide
-Regular: 283+99 mm tall (approx. 323 mm when combined), 135 mm wide
-Large: 315+109 mm tall (approx. 359 mm when combined), 150 mm wide