DUM pit droid
Dum pit droids were droids made by Serv-O-Droid and constructed on Cyrillia for use in repair and light construction. They were seen primarily on Tatooine in Watto's shop and at the Boonta Eve Classic working on podracers. Pit droids had an amazing amount of strength, able to lift many times their own weight. They could also repair a broken-down podracer at remarkable speeds.
Pit droids could spring into a compact, disk-shaped package. A tap on their nose would signal them to spring back into shape. One of their main tasks is to pick up the pieces of podracers that have blown apart, which is quite hazardous, for they usually performed the tasks while the race was still in progress. Several were destroyed during the Boonta Eve Classic. However, since Pit droids were cheaply produced, so this was allowed to happen.