It is machined from high-quality aluminum material, for durable use. Wheel Bearing plays an important role in increasing engine power These tools will replenish the grease your bearings need and push out contaminants. Insert the tool into your bearing and pump grease through the Zerk fitting with your grease gun. Wheel bearing lubricator repair oil filling tool for Polaris UTV and ATV wheel bearings Applicable models: Polaris UTV and ATV wheel bearings Product weight with packaging: 95g Color: silver Material: aluminum Quantity: 1set Packing list: 1*body Only the above package contents are included, other products are not included. Note: Reflection of light and different monitors may cause the item's color to be slightly different from the actual item. Measurements allow +/- 1-3 cm.