Description Widely suitable compatible with reversing railings, yard gates, sliding doors, rail doors, and similar applications. Easy to install and use, providing convenient functionality. Constructed from sturdy nylon materials that are wear resistant. Features a stable and sturdy bolt compatible with durable fixation that resists loosening. Features - Color: Black - Material: Nylon - Size: 6.50 x 3.00 x 3.00 cm / 2.55 x 1.18 x 1.18 in - Fine Workmanship: Made of high-quality nylon material, strong and durable compatible with long-term use - Compact and Portable: Thoughtful design helps reduce vibration compatible with improved percompatible withmance - Practical and Versatile: Offers good flexibility, allowing smooth sliding and reliable operation - Creative Design: Suitable compatible with use on sliding doors, rail doors, and various furniture applications as a replacement compatible with old components - Easy and Long-Lasting: Functional design provides reliable percompatible withmance and meets everyday needs Package List 4 x Guiding Wheels