Acrylic Material: These glow-in-the-dark stickers are made of acrylic, making them waterproof, durable, and resistant to bending and breakage. The smooth edges prevent scratches on your hands. The sticker surface is coated with a luminescent film, allowing it to glow in the dark, making it perfect for everyday use. Unique Glowing Design: These wall stickers not only serve as decorative elements during the day but also emit a soft glow at night. They absorb natural or artificial light during the day and illuminate constantly in the darkness until the stored light source is exhausted. Easy to Use: This 3D letter wall sticker has adhesive backing for easy installation and can be used on any smooth surface. Simply peel off the adhesive backing and stick it to the desired location, ensuring the surface is free of dust and debris. Wide Application: 3D alphabet wall stickers are suitable for any flat and smooth surface, such as windows, walls and ceramics, etc. The unique design of the alphabet wall stickers allows you to DIY decorate every place in your home, which can make your interior space look bright and add more warm and sweet atmosphere. Note: To ensure the letter stickers are firmly attached, make sure the surface is smooth and clean. Style: Letter "A" Size: 10 x 10 x 1cm / 3.94 x 3.94 x 0.39 inch (L*H*T) Color: Fluorescent Green Material: Mirror Acrylic, EVA Cotton Package Content: 2 x 3D Glow in the Dark Alphabet Stickers