Kasutamiseks keris meister nööri seelikust lahti ja kasutas seda ehitatava rajatise mõõtmete märkimiseks, lähtudes seeliku kesktapist, millest tõmmati joon maapinnale.
To use, the craftsman unwound the string from skirret and utilised it to lay out the dimensions of the structure being built, acting on a centre pin from which a line was drawn out to mark the ground.
