Isihlilingi esiyindilinga sisabalalisa isisindo somthwalo kuyo yonke indawo yaso yokuxhumana, sivumelane nesimo somthwalo njengebhande elithambile, eliqhubekayo. I-chain sling idlulisa umthwalo ngezixhumanisi zensimbi ngazinye, igxilisa amandla ezindaweni zokuthintana ezihlukene.
Isihlilingi esiyindilinga sakhiwe ngomgogodla othwala umthwalo wezintambo zokwenziwa ezivikelwe ngomkhono ongaphandle. Amanye amadizayini afaka umkhono obomvu obomvu oyisixwayiso wangaphakathi ngaphansi kwekhava yangaphandle . Lo mshini usebenza njengenkomba ebonakalayo: uma umkhono wangaphandle ulimele futhi umkhono wangaphakathi obomvu ubonakala, ubonisa ukuthi umgoqo wokuvikela wephuliwe futhi umgogodla othwala umthwalo ungase ube sengozini.
Impendulo incike endabeni yendwayimane. Izihlilingi eziyindilinga ze-polyester ne-polyamide zilinganiselwe amazinga okushisa afika ku-100°C (212°F) ngaphansi kwe-EN 1492-2, kuyilapho izihlilingi ze-polypropylene zilinganiselwe ku-80°C (176°F) .
Isihlilingi esiyindilinga asizi nedethi yokuphelelwa yisikhathi egxivizwe kulebula yayo—kodwa lokho akusho ukuthi ihlala phakade. Ngokusho kwe-EN 1492-2, indinganiso yaseYurophu yama-roundslings, umkhawulo womthwalo osebenzayo (WLL) kanye nesici sokuphepha kucacisiwe, kodwa impilo yesevisi incike ezimweni zangempela zokusetshenziswa. Abanye abakhiqizi bacacisa isikhathi sokuphila esiphezulu seminyaka eyi-10 kusukela ekusetshenzisweni kokuqala ngaphansi kwezimo ezifanele.