Bh butterfly accessory for olympic rack bench g510 the bh g510200 butterfly accessory fits onto the front of the bh olympic rack bench g510 and provides additional chest workouts concentrating on the pectoral muscles but also includes the deltoids, triceps and biceps'. '.strtoupper('t')his heavy duty butterfly unit will take a vigorous workout and can be used in any light commercial environment'. '.strtoupper('p')lease note weights not included'. '.strtoupper('f')eatures specifications features 2 x hand grips 2 x weight unicorn for loading olympic plates smooth motion home and light commercial warranty specification frame steel powder coated finish warranty home and light commercial free delivery options two man delivery on this product  due to heavy weight we will call you to arrange a suitable date installation service installation service available  click for details confused by all the options? call the store free on 0800 4580 081