The stones usually measured one half to three quarters of an inch [10 to 20 mm] in diameter, but some detailed sections used pebbles as small as a mere one quarter of an inch [5 mm].
Tavaliselt kasutati 10 – 20 - millimeetrise läbimõõduga kive, kuid mustri detailsemates osades kasutati isegi 5 - millimeetriseid kivikesi.