I-Pec Fly / i-Rear Delt ngumatshini osetyenziswa kabini obeka isifuba ngokugqibeleleyo ngeengalo ezilungelelanisiweyo kunye nezibambo.
Ngokuhlengahlengisa indawo yokuqala kwaye ujonge kumatshini i-Watson Pec Fly / Rear Delt ikwabonelela ngendlela entle yokwahlula intloko yangasemva yeedelts.
Ulwakhiwo olunzima kakhulu kunye ne-100 kg yesisindo sobunzima senza lo matshini ugqibelele iminyaka yokuxhatshazwa kwiijimu eziqinileyo.