DescriptionWidely suitable for reversing railings, yard gates, sliding doors, rail doors, etc. Easy to install and use. Can bring you great convenience. Sturdy nylon materials, wear resistant. Stable and sturdy bolt allows durable fiation and not easy to loosen.FeaturesColorBlackMaterialNylonSize6.503.003.00cm2.551.181.18inFine WorkmanshipIt is made of good nylon material, strong and durable, and can serve you for a longtimeCompact and PortableReasonable design can help reduce vibration and make it more practicalPractical and VersatileEcellent craftsmanship makes it have good fleibility, easy to slide, and use more smoothlyCreative DesignYou can apply it to sliding doors, rail doors and other furniture to easily replace old accessoriesEasy And LongLasting Convenient and practical will be your ecellent replacement parts, which will well meet your needsPackage list 4 Guiding Wheels