These Schumacher Racing Products servo arms are the factory replacement for the Cat PB 4x4 buggy. Sold as a pair, they feature a dual-hole design with a large central bore and a smaller mounting hole for secure servo attachment. Molded from black plastic, they are direct-fit replacements to restore proper steering or throttle linkage geometry on your Cat PB. Features: Sold as a pair Dual-hole design with large central bore Made for the Schumacher Cat PB 4x4 buggy Factory replacement fit for correct linkage geometry 7/7/26 cs