Dimensions: 10.04 x 0.39 x 0.31 inches (large) - Intended for pot sizes of 6 - 12. Senses water at root level, no dirty fingers & damaged trying to gauge soil moisture Extend the life of your beloved houseplants with the Aquameter soil moisture meter for indoor and outdoor plants. is designed and Japan and is the perfect addition to various houseplants. It has a slim, minimalist aesthetic that doesn't take away from the beauty of the plants, harmoniously blending in when left in the soil. It works with almost any plant that grows in the soil. Award-winning product design, environmentally friendly, and maintenance-free (no battery required). Keep your hands clean by visually monitoring when your water When using the moisture testing stick, the white color indicates that the watering, and the blue color indicates that it has enough water. The core insert that determines if watering is needed can also be manually replaced. This leave in soil moisture meter is maintenance-free. A perfect plant watering indicator for potted plants. It is recommended to replace the refillable core of your after 6- of use., Manufacturer: Akfldms