Wear Bar - Trail Blazer IV* Flat-Top? - 6" - 60? Excellent high-speed cornering control, 1/2* host runner features 6* of 60? sharp edge turning carbide, Wear pads are a full 1-1/2* long, Full-length hardweld surfaces between all three carbide inserts provide extended wear, Extra-long studs make it easy to install plastic ski skins, Track studding , Features 6* of 60? carbide, 1/2* round bar with Flat-Top? design, Provides safety and control for both studded and un-studded sleds, Some skis may require drilling an additional hole.