pe ze ▁are ▁often ▁both ▁attached ▁to ▁a ▁single ▁sw ivel , ▁allowing ▁the ▁tra pe ze ▁to ▁spin ▁in ▁either ▁small ▁or ▁large ▁circles . ▁ ▁Double ▁tra pe ze ▁( also ▁known ▁as ▁the ▁French ▁tra pe ze ) ▁is ▁a ▁variation ▁on ▁the ▁static ▁tra pe ze , ▁and ▁features ▁two ▁perform ers ▁working ▁together ▁on ▁the ▁same ▁tra pe ze ▁to ▁perform ▁figures ▁and ▁bear ▁each ▁other ' s ▁weight . ▁It ▁can ▁also ▁be ▁performed ▁swing ing , ▁in ▁which ▁case ▁the ▁act ▁is ▁called ▁swing ing ▁double ▁tra pe ze . ▁▁ ▁Multiple ▁tra pe ze ▁refers ▁to ▁a ▁number ▁of ▁different ▁shapes ▁and ▁sizes ▁of ▁tra pe ze , ▁including ▁double ▁tra pe ze , ▁triple ▁tra pe ze ▁and ▁larger ▁multi ples ▁designed ▁for ▁use ▁by ▁multiple ▁simultane ous ▁fly ers . ▁Sh aped ▁tra pe zes ▁are ▁appar atus es ▁that ▁can ▁take ▁virt ually ▁any ▁shape ▁imag in able . ▁ ▁Du plex ▁tra pe ze ▁refers ▁to ▁any ▁tra pe ze ▁with ▁two ▁layers ▁of ▁hand ▁bars , ▁one ▁on ▁top ▁of ▁the ▁other , ▁such ▁that ▁ac rob ats ▁can ▁jump ▁from ▁the ▁upper ▁bar ▁and ▁land ▁( or ▁be ▁caught ▁by ▁a ▁catch er ) ▁on ▁the ▁lower . ▁ ▁Further ▁reading ▁ ▁Sh aron ▁McC ut che on , ▁Geoff ▁Per rem . ▁ ▁Circ us ▁in ▁School s ▁Hand book . ▁Tar ook ▁Publishing , ▁ 2 0 0 4 . ▁() ▁ ▁H ove y ▁Burg ess