Gemini series Fiber Optic 5 Hole Handpiece Coupler - Kavo MULTIflex-Type. Enables quick instrument changes in the operatory. 360º full rotation for improved ergonomics and safety. Anti-retraction valve prevents backflow of contaminated water. 3 mm W x 10 mm L x 2.5 mm D (with 4 mm overall Width). 5 Hole. For use with: Gemini Handpieces, Kavo Handpiees, QD Handpieces, Whispair Signature Handpieces.