Wave exciter with support rod

Serves as exciter for transversal and longitudinal waves when controlled by a function generator;
DC motor with mounted toggle with holes to accept a rubber cord or coil spring,
stainless steel U-bolt with support rod (10 x 60 mm), two 4-mm safety sockets
Supply voltage max. 6 V
Dimensions: 75 x 75 x 60 mm (without support rod)