Features: Natural Material: Made from coconut husk fiber without any chemical additives, ensuring a safe and eco-friendly environment for your pets. High Water Retention: Absorbs water and expands its original size, providing excellent moisture retention for reptile habitats. Easy to Use: Simply add water to quickly expand the brick into a soft, ready-to-use substrate with no additional processing required. Excellent Ventilation: The loose structure promotes air circulation, helping to prevent mold growth and maintain a healthy microclimate. Versatile Application: Ideal for turtle hibernation, hermit crab terrariums, lizard bedding, and even as a plant seedling substrate. Specifications: Material: Natural Coconut Coir Fiber Form: Compressed Dry Brick Net: 500g±5g pH Value: 5.5-6.5 (Neutral, Suitable for Most Reptiles) Include: Choice1: 1 * Coconut Fiber Substrate Brick OR Choice2: 2 * Coconut Fiber Substrate Bricks OR Choice3: 3 * Coconut Fiber Substrate Bricks