Perfect Compatibility: Designed exclusively for Freo X, Ultra, and J4/J4 Lite models, these reusable mops a and optimal cleaning performance. Check your model compatibility before purchase to maintain device efficiency. Eco-Friendly Cleaning Solution: Crafted from microfiber, these mops are both washable and reusable, offering an environmentally friendly alternative to disposable products. Wash and reuse to reduce waste and keep your home clean and green. Enhanced Cleaning Efficiency: Engineered to work seamlessly with your robot vacuum, these mops tackle types, ensuring thorough cleaning throughout your home. The dual-color set allows for easy rotation, maintaining consistent cleaning results. Versatile : allowing you to alternate colors based on cleaning needs or keep handy for uninterrupted cleaning sessions. Ideal for maintaining a clean environment with minimal effort. User-Friendly Maintenance: These mops are designed for hassle-free use, featuring easy installation and removal. Simple to clean and maintain, they help sustain the of your robot vacuum for a spotless home. (The actual product may have slight color difference or difference, which not affect the use) Color: White & Gray Material: Microfiber Package Contents: 4 * White Mop Cloth 4 * Grey Mop Cloth Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.