1. Okpu agha na-acha uhie uhie, na-egbuke egbuke ma na-adọrọ adọrọ, na-echebe isi na ntị, ma nwee oghere drainage na akụkụ elu nke okpu agha.
2. A ghaghị iji polyethylene dị ike mee shei ahụ, nke nwere ike inye ọrụ nkwụsịtụ dị mma.A na-eme rivets nke igwe anaghị agba nchara, nke nwere ike izere nchara mgbe ejiri ya na mmiri.
3. Okpu agha nwere oghere ventilashị 8 drainage;okpu agha nke nwere ọkwa nchebe dị elu, nhazi ergonomic na ụfụfụ ụfụfụ na-eme ka okpu agha na-eguzogide ọtụtụ mmetụta.Oghere ikuku dị n'elu okpu agha na-eme ka ahụ dị jụụ n'ụbọchị ọkụ.
4. Enwere oghere ventilashị 4 n'akụkụ aka ekpe na aka nri, nke mere na ọ gaghị emetụta ntị.
5. Ihe mkpuchi ụfụfụ nke e wuru nwere ike ịkwado isi ya nke ọma, na eriri olu na-eme ka ọ ghara ịgbanwe mgbe edozichara ya.Ogologo eriri ahụ bụ ≧ 30cm, na-eji ngwa ngwa, na nha nwere ike gbanwee.
6. Nhazi nke uzo mmiri n'elu na-egbochi mmiri nke mmiri na-asọba na ihu;enwere ike iji oghere dị n'akụkụ na-eyi ugogbe anya maka anwụ;arọ bụ ≦550g, dị nnọọ mfe.
7. Usoro wheel jingle nwere ike idozi na ngwa ngwa gbanwee eriri ahụ, na-enye gị ohere ịmegharị nkwụsịtụ na ọkwa kachasị mma.