About This PREMIUM BEARINGS FOR ULTIMATE PERFORMANCE: Hop on your longboard or skateboard with confidence knowing you’re equipped with the highest-end bearing available from Yellow Jacket with these premium skateboard bearings. PREMIUM BEARINGS FOR ULTIMATE PERFORMANCE: Hop on your longboard or skateboard with confidence knowing you’re equipped with the highest-end bearing available from Yellow Jacket with these premium skateboard bearings. HIGH-SPEED PREMIUM SKATEBOARD BEARINGS: Crafted with Si3N4 ceramic balls and titanium coated housing, these skateboard bearings offer the speed you need and durable construction for long-term use. PRE-LUBRICATED PRO LONGBOARD BEARINGS: Feel the need for speed with these pro longboard bearings crafted with lubricant inside the wheels and bearings that offer minimal friction while navigating ramps and jumps. DIVERSE PREMIUM BEARINGS: Outfit your skateboard, longboard or in-line skates with these premium bearings that offer a smooth ride and less friction, even in the most active scenarios. VIVID DESIGNS: Each of these high-end bearings feature engraved color seals to accentuate your style and to offer protection from overuse, dirt, dust and rocks. Overview Brand : Yellow Jacket Material : Ceramic Item Weight : 0.14 Kilograms Bearing Number : 8mm Specification Met : ABEC 9