This is a HPI 115311 Linkage Pivot (10pcs) 

Genuine HPI spare part for ensured quality, correct maintenance and easy repairs. See below for kit compatibility.

THIS PART FITS THE FOLLOWING KITS / PARTS:
Jumpshot MT V2 - Red/Blue
Jumpshot ST V2 - Yellow
Jumpshot MT Flux - Yellow
Jumpshot SC Flux - White
Jumpshot ST Flux - Blue
Jumpshot MT V2 - Blue/Silver
Jumpshot SC V2 - Green
Jumpshot ST V2 - Red
Jumpshot SC V2 Toyo Tires Edition
Jumpshot SC Flux Toyo Tires...