All the qualities of the handle, Heavy Metal Trigger mechanism, and barrel are also present in the Hero Roller version. This simple roller system is definitely an easy way to switch from a double circular to a Roller solution with an easy-to-use design. Hero Roller is available in different lengths in 10-cm increments. The elastics are always 16 mm in diameter, while the shafts are 7 mm up to 95 and then change to 7.5 mm. Built entirely in Salvimar factory, made in Italy. \n\nTECHNICAL DETAILS \n - Asymmetrical elliptical barrel made of aircraft aluminum alloy \n- Pacific shaft ø7.5; 140cm \n- Double elastic bands ø16, 64cm \n- ROLLER HERO shafts \n- Teflon® Muzzle guides \n- Increased profile for better hydrostatic trim \n- Sensitive trigger adjustment \n- Chest loading pad of soft rubber \n- Chest loading pad with hook for line releaser fixing or reinforced snap hook \n- New Heavy Metal 350 release mechanism (Tested load 350kg) \n- Ergonomic grip with right and left butt as standard.'