Description This product is designed for both adult and children's roller skates. The double-sided male and female screws ensure a secure fit for your skateboard or roller skates. Ideal for replacing worn-out parts, these components enhance the performance and longevity of your skating gear. Features -Color:Silver -Material:Galvanized iron -Size:4.50X1.20X1.20cm/1.77X0.47X0.47in -Universal compatibility: designed to fit various roller skates and skateboards, making it easy to replace wornout parts without hassle -sturdy hexagon screws: features sturdy inner hexagon screws that ensure stability and safety during skating sessions -Enhanced flexibility: combines axle screws and bearings to improve wheel agility for smoother and more fluid skating movements -Quick installation design: doublesided male and female screws allow for fast assembly and disassembly, saving valuable adjustment time -Suitable for all ages: for both adults and kids, ideal for fun or professional roller skating training sessionsPackage list: 20 x roller skate screws