Ogwe anyị nwere ike ijikọ ya na clamps, nwekwara ike jikọta ya site na skru ígwè, nha eri ahụ nwere ike ịhazi ya ka ịchọrọ, nke a dabara adaba nwere ike ime ka osisi gị ruo ogologo oge ịchọrọ.
Ihe kposara nwere ike ịbụ na aluminom, igwe anaghị agba nchara, ihe plastik.skru nwoke na nwanyị nwere ike dakọtara nke ọma, mgbochi ịgbagọ na nke siri ike agaghị agbaji.