#838 can be substituted with a #883 Flex Bracket and a #830 Coupler.
Coupler #830 and Gear Box with Flex-bracket for small radius track.
One pair per package
Cancer and Reproductive Harm - www.P65Warnings.ca.gov WARNING:
CHOKING HAZARD - Small Parts - Not for children under 14 years.
Kadeeﾮ Quality Products Co. products are not toys and are not intended for children under 14 years old.