9900 Small Gear Wheels

9900 Small Gear Wheels is a System Technic Service Packs set released in 1987. It contains two grey micromotor pulleys, four grey 14 tooth bevel gears, two grey 16 tooth gears, two grey 24 tooth crown gears, two grey 24 tooth gears, two grey 1 x 4 gear racks, three grey 8 tooth gears, two grey wedge belt wheels and two black worm gears.
== External links ==
* Toys Period
Category:9000 sets
Category:1987 sets
Category:TECHNIC
Category:Service Packs