For the 1974 to 1976 Yamaha DT100. These are the special plates washers for the tachometer and speedometer of the listed bikes. 
PART # 437-83524-00-00, comes with clips, PART # 90468-10050-00, rubber damper, PART # 437-83523-00-00 .
 
This is a kit containing (2)  new washers, (2) new clips, (2) new rubber dampers.