The Shark SE450 SE460 S3601 S3801 S3901 Water Tank Cap Lid Top is a genuine part made of gray plastic specifically designed for Shark steam mops. This cap lid top is suitable for the Shark SE450 model and ensures a secure fit on the water tank to maintain optimal performance during cleaning tasks. With this genuine part, users can easily replace a damaged or missing cap lid top and continue to enjoy the effective and convenient features of their Shark steam mop.