The one made in France seems to work, but not really sure how it works. This one is 2" in diameter. The other one needs to be tightened, but all is there. It is 2 1/8" in diameter. They need to be cleaned. I am selling them cheap for repair or parts. 

Please check pics, they are part of the description. I will ship immediately. Shipping is FREE to the USA, including Puerto Rico.  Any questions, please ask. I try to recycle shipping supplies.