Anyị ụlọ ọrụ nwere 20 egweri maka nkenke egweri nke brad ebe-agwụ ike u, site oghere onu, mgbabere uzo u na-abụghị ọkọlọtọ ngwaahịa. N'otu oge ahụ, enwere igwe laser 2, ngwa nyocha ngwaahịa abụọ, yana 1 igwe akụrụngwa maka nnwale maka nnwale ngwaahịa na mmepe ngwaahịa ọhụụ.
