"Bearing" high-precision bearings, use and safety instructions notes: 1. Maximum load capacity of up to 80 kg of this product. 2. The start of the shoe size: 20~25CM. 3. User before using, you must first check for loose parts are on tight. 4. After each use, use a dry cloth to clean the brush, wheel, bearing and bearing oil. 6. children under five years old or younger should slide it under adult's guard. 7. When should wear adequate protective equipment (such as designer support, elbow pads, knee pads, helmets). 8. slide screws, rivets should be checked before the products and shoe is solid. 9. it will be sliding in a safe, legal venue. 10. should avoid cars and crowded venues or gliding through the night. 11. it should be avoided in a mixture of water, oil or sliding on uneven ground. Skate maintenance 1, often take out the shoe wash, deodorant and avoid the breeding of bacteria. 2, the regular replacement of the left and right sides of the wheel, allowing inline skates the wheels more durable. 3, to avoid sliding on rough roads, you can extend the life of wheels and bearings. 4, not individual replacement wheels or bearings, this will reduce sliding stability. 5, if the bearing is used for a long time, during taxiing is not smooth or "rustling" sounds may be bearing down and put them in "spotting oil" soak for half an hour or so, will be cleaned of impurities within the bearing, and then sprayed with oil or oil bearings. This can extend the service life of the bearing. 6, the product when not in use, should be housed in dry and where there is no sunlight. So for parts for rust protection and aging products have a role.