Ho sebelisoa ha letsoho ka letsoho, le eena ea ho noka ha matsoho, e sebelisoa ho bula li-caps tsa crimp. Molumo o bonolo le oa moruo oa boholo ba boholo bo fapaneng (nd11 le nd20). E loketse li-cap tsa aluminium le bimottal, eseng bakeng sa li-cap tsa makenete.