this is a pair of curvetemp shower door roller units with ball joint type grooved wheels , the outer diameter of the wheels is 22.3mm and the groove diameter is 18.5mm , the require a fitting slot in the door of 22.00mm X 11.00mm , the main body of the roller unit is grey and the fitting cover cap is chrome .

these are the genuine Italian imports and not the cheap chinese copys seen on other sites 

sold as a pair as shown in the image 

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