Constructed from premium quality plastic, ensuring safety and durability for long-lasting use. Clear visibility of the water level allows for timely and flexible watering, making plant care effortless. Each indicator measures 36 cm in length and 3 cm in diameter, designed to fit a variety of plant pots. Eco-friendly solution requiring no batteries or electricity; simply insert into the soil for immediate use. Versatile and practical for a wide range of applications including hydroponic systems, cultivation pots, and flower boxes. Our water level indicators are designed to simplify plant care by providing a clear visual cue for watering needs. The buoy mechanism indicates when water is low or sufficient, ensuring your plants receive the right amount of hydration. Ideal for both indoor and outdoor gardening, these indicators are perfect for various pot types, as long as they have a built-in water reservoir. Color: White Material: plastic Package Contents: 3*water level indicator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.