●Color: Blue; Specifications: 0.2 inch (5 mm) grid perforated for full adhesive; Quantity: 9 pieces in case ●Feature 1: Simply peel and stick to the desired size and hide it with your red or green sheet ●Feature 2: A film that can be removed with a 0.2 inch (5 mm) grid for learning ●Note: Red and green sheets are not included ●[Materials] Main Body Notes: Synthetic paper, Adhesive: Acrylic