For outdoor plants, the water level indicator is a reliable companion. It serves as a water tank level indicator, nice helper for you. The meter for plants is easy to use; just place it in the , and the water gauge will display the level. Features -Color:Transparent -Material:PP -Size:16.50X2.00X2.00cm/6.48X0.79X0.79in(120) -Size:22.80X2.00X2.00cm/8.96X0.79X0.79in(180) -Visual water level gauge: the clear visual display of the water level gauge allows you to easily monitor the levels in your flowerpots -Prevents water shortage: the water shortage reminder feature alerts you when the water level is low, helping you underwatering your plants -Simple installation: the water level indicator is easy to install and use, making it a convenient tool for both beginner and experienced gardeners -Durable construction: made from durable PP, this water level gauge is built to last and provide reliable performance, even with regular use -Suitable for all plant types: whether you have indoor houseplants or outdoor garden plants, this water level indicator is versatile and suitable for all types of potted plants Package list: 2 x flowerpot water level gauge(120) 2 x flowerpot water level gauge(180)