Two-legged robot seen delivering parcels to homes in England. A two-legged delivery robot named Iris has begun a European-first trial on the streets of England's Barnsley. Visuals circulating on social media showed the robot delivering parcels to homes. Iris was developed by Japanese company Refined Robotics, which is conducting the trial in collaboration with a parcel delivery group. The robot can carry parcels weighing up to 20 kg.