Canon Genuine Tripod Mount Ring F (WIII) This is the one that came with the RF 100-500. *Price reduction not possible* This was purchased as a spare. If you don't mind small scratches, there is no looseness in the ring, which is rare. - Brand: Canon - Type: Tripod Mount Ring - Model: Ring F (W) - Country of Manufacture: Japan - Color: Gray - Condition: Minor scratches eos r5 eos RF lens 100-500mm 100mm 500mm Canon Camera body Thank you for viewing.