There are 3 main adapters for the HeadBlade:
Yellow Adapter (HB2/HB3):
Gillette Double and Triple blades
Gillette Atra Blades and Atra Plus (USA)
Any blade that says they are compatible with Gillette Atra razors.
Link:
http://www.headblade.com/product/91206.htmlThis adapter will work with the HeadBlade Original, Sport, ATX & MOTO models.
Black Adapter (Sensor Adapter):
Gillette Sensor and Sensor Excel
Gillette Sensor Triple blades
Gillette Double and Triple blades
Any blade that is compatible with Gillette Sensor razors
Link:
http://www.headblade.com/product/SENSOR_ADAPTOR.htmlThis adapter will work with the HeadBalde Original, Sport, ATX & MOTO models.
HB4/HB6 Adapter:
This adapter is only for the HeadBlade brand blades and works on the ATX and MOTO Models.
Link:
http://www.headblade.com/product/HB4-6_ADAPTOR.html