Flap and Pocket jointQuarter unit II / 1/4ใฆใใใ II Quarter unit II Parasol / 1/4ใฆใใใ II ใใฉใฝใซ Quarter unit II Basic : the face / 1/4ใฆใใใ II ๅบๆฌ : ใใใฆ Quarter unit IIFlap and Pocket jointModular TypePaper joint Type