Feature●✅【QUALITY & DURABILITY】 -- Made of high-quality lubricated 608-2RS steel●✅【OPTIMAL PERFORMANCE】-- Features dual shields for optimum lubrication and reduction of contaminants●✅【ALL SKATE TYPES】-- Built for any type of skating: inline, roller blade, rollerskate, skateboard, RipStik and more●✅【DURABLE STEEL】-- Carbon ABEC-1 steel●✅【QUALITY GUARANTEE】-- We provide only high-quality bearings. If you are not fully satisfied for any reason, just contact us by Amazon messaging within 30 days for a full refund of your purchase price. RollerxDescription