High quality materials and design - Breathable upper and inner lining provide comfort during extended use. The sole is wear resistant, and the PU roller is built for durability. The wheel set supports a load capacity of 85 kg. Before first use, apply lubricant to reduce friction and improve gliding. 2-in-1 adjustable versatility - Multifunctional and adjustable roller skates that are different from conventional inline skates. They can be used with inline skating, regular sports shoes, or hiking shoes, offering flexibility for different activities and footwear. Secure, invisible wheel mechanism - Invisible design with a back button to prevent accidental opening. To deploy the wheels, press the button. To activate, press and hold the button, press the wheel into the ground, then release. Stable and practical - The shoes offer good balance, helping you easily control your center of gravity for safer, easier use. Use scenarios - Urban commuting: replace or supplement walking with smooth inline skating on sidewalks and campuses. - Outdoor recreation: compatible with hiking shoes for light trails and park paths. - Indoor practice: suitable for gym or training sessions with regular sports shoes for controlled, steady gliding.