Glow in the Dark Effect: Expose these stones to light for 10-15 minutes to achieve a luminous effect lasting up to 3-4 hours in the dark, with potential lifespan of up to 15 years. Environmentally Friendly: No need for batteries as these stones light up using natural or LED light sources, making them sustainable and cost-effective. Versatile Use: Ideal for indoor and outdoor decor, these stones can line walkways, driveways, flower beds, or be used in potted plants for DIY arrangements. Special Decorative Touch: Enhance your garden, pond, or home decor with these glow in the dark stones, creating a unique and captivating ambiance. Thoughtful Gift Idea: Share the magic of these decorative stones with friends and family, making them a thoughtful and enchanting gift for loved ones. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.