Features: Revitalize dark fabrics with our Black Laundry Detergent Sheets, formulated to restores depth to fade black while removing tough stain like grease and dirt through fiber penetrating technology. Crafted from sodium carbonates, color enhancing dyes, and nonwoven fabric materials, these concentrated sheets prevent fading and fabric damage during machine washes. Designed for owners of dark clothes, professional uniforms, or luxury bedding who prioritize color preservation and safe laundry care. Effortlessly maintain black jeans richness or refreshing charcoal colored curtain by tossing sheet into any wash cycle, nomeasuring or residues concerns. Each sheet combines safe cleaning power with color boosting performances, offering premium fabric care in sustainable, space saving packaging. Specifications: Component: Sodium carbonates, dye, nonwoven fabric Product Size: Approx. 14x11cm/5.51x4.33inch Type: 01/02 Package Includes: Type 01: 1 Bag Laundry Sheets( 15pcs/bag) Type 02: 1 Bag Laundry Sheets( 30pcs/bag) note: Please allow 0-1cm error due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color the item