DOOLY 6" CARBIDE RUNNER 670-104064 The Wheel Seal Kit also

The Wheel Seal Kit also includes SKF bearings

but on the other hand

Asymmetric design for left & right arms

Soft poly-foam surrounded the ankles and collar offer shock absorbing performance

10mm 6 sided chain links made of manganese steel

DOOLY 6" CARBIDE RUNNER 670-104064 The Wheel Seal Kit alsoEach of these dual carbide runners have two single runners mounted to a steel plate, producing a total of four contact lines on the terrain. These four blades with 60 carbide drastically reduce darting as they carve through existing grooves from single runners. This design spreads the PSI across two points, which extends the life of the runner and eases steering. When turning, only one blade per dual runner will contact the terrain, acting like a pair