Lub khawm ris tsho yog tsim los ntawm lub khawm sab saud (A daim) thiab cov ntsia hlau qis (B thooj), thiab ob qhov sib xyaw ua ke los ntawm kev khob.Vim tias cov duab sib xyaw ua ke me ntsis zoo ib yam li Suav lo lus "gong", nws yog lub npe hu ua "I-shaped button", tseem hu ua "jeans button". Cov ntaub ntawv tseem ceeb koom nrog hauv cov nyees khawm yog tooj liab, zinc alloy, hlau, txhuas thiab lwm yam.Qhov loj ntawm cov nyees khawm nws txawv ntawm lub Hoobkas mus rau lub Hoobkas, tab sis feem ntau yog: 16L (10MM), 18L (11.5MM), 20L, (12.5MM), 24L (15MM), 27L (17MM), 32L (20MM) .jeans nyees khawm yog siv nyob rau hauv thicker denim fabrics, Muaj zog dualoj resin nyees khawm,yas 4 qhov khawm,resin tsho khawm.