Razer wolverine replacement sticks* I'll discuss in the comments but if you're looking for replacement sticks for your RW ultimate controller, a third party Xbox Elite replacement kit works well. Spent £20
Analog stick drift fix PCB flex mod for Wolverine Ulimate | Helder Game Tech – ZedLabz
Razer Wolverine V2 Chroma Xbox pro controller is a handful of buttons for $150 - CNET
Razer Wolverine Ultimate Review by Adam Dileva - XboxAddict.com
$15/mo - Finance Razer Wolverine Ultimate Chroma- Fully Customizable Gamepad Controller - Interchangeable Analog Sticks & Dpad - Compatible with Xbox One, PC (Renewed)
Amazon.com: Razer Wolverine Ultimate Officially Licensed Xbox One Controller: 6 Remappable Buttons and Triggers - Interchangeable Thumbsticks and D-Pad - For PC, Xbox One, Xbox Series X & S - Black : Everything Else
Razer's Wolverine V2 Chroma features interchangeable thumb sticks | Engadget
Razer Wolverine Ultimate Review by Adam Dileva - XboxAddict.com
PC and Xbox One Controller - Razer Wolverine Ultimate
Razer Wolverine Just May Be The Most Customizable Xbox One Controller Available