Set of TPU ring consisting of 02 items as per RDSO drawing no. CG- 20049 and RDSO specification no. MP- 0. 40. 99. 01 ( Rev- 3 ) August 2017. Quantity per set- ( 1 ) TPU ring inner for Primary suspension, item no. 1 of drawing CG- 20049- 16 nos. ( 2 ) TPU ring outer for Primary suspension, item no. 2 of drawing CG- 20049- 16 nos.