Description: 【High Performance Design】: These inline skate replacement frame are crafted for speed roller skating, offering a sleek and aerodynamic design that enhances your skating performance. Great for both competitive and recreational skaters 【Sturdy Alloy Construction】: Made from quality professional alloy, these frame provide exceptional strength and durability, ensuring long term use even under rigorous skating conditions 【Versatile Compatibility】: Designed to fit most adults and children’s roller skates shoes, these frame are ideal for upgrading your current setup or replacing worn out parts to maintain optimal performance 【Enhanced Stability and Control】: The accurate engineered structure of the frame offers great stability and control during high speed skating, allowing you to maneuver with confidence on various surfaces 【Easy Installation】: With user friendly installation features, these inline skate frame can be easily attached to your existing wheels and boots, making it convenient to switch out old frame without hassle Specification: Material: Alloy Size Chart:for 4x90: 30cmx4cm/11.81inchx1.57inch Package Includes: 2 Inline Skate Replacement Frame With Accessories Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.