Liquid Bearings 100%-synthetic Oil for roller and inline skates, SUPERIOR lubrication and rust prevention for wheel bearings! 100%-synthetic lubricant, perfect for all skates! Immediately begins to displace old petro-oils or sprays. Makes sluggish bearings move much quieter and smoother! Includes both 1/2" AND 1-1/2" needles, each with tip scabbard! Superior corrosion and rust prevention for your wheels!