1. Tripod,Three feet pulley,easy for installation 2. it can be used with all kinds of video&film camera Scorpio video equipment system includes: 2m-20m camera cranes,6m-8m manual cranes,thres-axis electronic control heads,3Delectronic control heals,stainless steel tracks,rubber teacks,shock absorber,SLRkits.our products are beautiful in design and reasonable in price.arm body with triangular ...