Description Widely suitable for reversing railings, yard gates, sliding doors, rail doors, and similar applications. Easy to install and use, providing added convenience. Constructed from sturdy nylon materials that are wear resistant. Features a stable and sturdy bolt for durable fixation that resists loosening. Features - Color: Yellow - Material: Nylon - Size: 8.60 x 4.80 x 4.80 cm / 3.38 x 1.89 x 1.89 in - Made of high-quality nylon material, strong and durable for long-term use - Thoughtful design helps reduce vibration, enhancing practicality - Precision craftsmanship ensures good flexibility, smooth sliding, and ease of use - Suitable for use on sliding doors, rail doors, and various furniture applications as a replacement for worn components - Practical and reliable replacement part that meets everyday needs Package List: 4 x Guiding Wheels