VEVOR Plastic Table Cover, 40 x 60 Inch 2.0 mm Thick Clear Table Protector, Rectangle PVC Desk Mat, Waterproof & Easy Cleaning Desk Pad Tablecloth, for Office Dresser Dining Room Table Night Stand

If the ripples persist, use a clean card or soft scraper to gently smooth the surface. For more severe ripples, remove the mat, clean the dresser surface and the underside of the mat to remove dust or debris, then lay it flat again carefully to avoid creating new ripples.

If the ripples are small, please place the mat in a well-ventilated area and allow it to flatten naturally over time. You can also use a hair dryer or heat gun at a low temperature to gently warm the rippled area, then press it lightly with a clean cloth. Please avoid excessive heat, as it may deform the mat.