2 Pieces Water Tank Cover with Leak-Proof O-Ring Compatible with iRobot Jet M6 Braava Mop Robot. High-quality material: The water tank cap is made of high-quality plastic, safe, durable, and corrosion-resistant, with sufficient surface hardness to ensure longevity and reliability. Easy installation: Designed for simple installation and removal, this water tank cap cover is a convenient replacement for old or damaged parts, saving time and effort for uninterrupted use of your mop robot. Properly sized to tighten securely and help prevent water leakage. Easy to clean: The water tank cover simplifies daily maintenance; wash with warm water before use and air dry completely. Packing list: 2 x Water tank caps, suitable for daily use and replacements. Note: Measurements are manually taken; please allow 1-3 cm variation. Due to lighting and screen display differences, colors may vary slightly from the actual product.