Rapid Reducer 4mm to 2mm - Pack of 25

Reducers 4mm to 2mm - Rapid PEN 9996/25, Pack of 25 nylon 4mm to 2mm reducers, ideal for use with model motors, axles and wheels. Rapid Reducer 4mm to 2mm - Pack of 25

Price: 3.22 from Rapid Online Rapid Electronics Ltd.