He mea hanga motuhake tēnei mō ngā mahi tino kaha i roto i te karapu, e tohu ana i te mahi tino pai i roto i te rūma o te heke mai. He tino ergonomic, he ngāwari hoki te whakarite i te mīhini ABS. Ko tōna āhua huatau ki ngā āhua porowhita me tōna hoahoa maeneene, he hanganga tino pakari me ngā wiri kaha, ko ōna whakatakotoranga hangarau me ōna āhuatanga matatau, ko tōna papatohu hiko tino watea me tōna pumau tino pai, mā te ngāwari o te whakamahi me te whakakotahi i te ergonomics me te haumaru, ka tukuna e te Back Extension Mega Power ngā nekehanga tika me te rere e makona ai ngā hiahia o te mahi hākinakina tino uaua, me te kore e ruarua.