R409       *BUMPERS should be passive. BUMPERS must be fixed relative to the ROBOT PERIMETER. BUMPERS may not contain any elements which move during the MATCH or electrical elements.

G410       *Keep your BUMPERS low. ROBOT extensions may not interact with the carpet, BUMPS, or TOWER BASE such that the BUMPERS are lifted out of the BUMPER ZONE (see R405).

R411       *BUMPERS indicate your ALLIANCE. Each ROBOT must be able to display red or blue BUMPER covers to reflect their ALLIANCE color, as assigned in the MATCH schedule distributed at the event (as described in section 10.1 MATCH Schedules). Contrasting markings on outward, upward, or downward facing surfaces of the BUMPER cover, other than the following, are prohibited:

R407       *BUMPERS shouldn’t be wedges. BUMPERS must not act as wedges when interacting with other BUMPERS.