Lishenflex dị ka onye ọkachamara na-emepụta eriri ratchet okpukpu abụọ na onye na-ebubata ya na China, eriri abụọ nko ratchet agafeela ụkpụrụ asambodo ụlọ ọrụ mba ụwa, yana ị nwere ike ijide n'aka nke ọma. Ọ bụrụ na ịchọtaghị eriri ratchet nke gị Intent okpukpu abụọ na ndepụta ngwaahịa anyị, ị nwekwara ike ịkpọtụrụ anyị, anyị nwere ike ịnye ọrụ ahaziri iche.