Medium Size Improved Adjustable Self Watering Globes for Plants. Indoor Outdoor Decorative Garden Irrigation System Aqua Watering Bulbs Stakes – Spikes with a Plastic Tube for No More Mess(4 Pack)

IMPROVED DESIGN- After many tests, we wanted to fix the most common problem with the watering globes. 1. Clothing the glass tube with dirt. (Now you put the glass spike in a plastic tube and the tube stays in the dirt) 2. Difficult to adjust the flow (You make a small hole in the bottom of the tube and flow first fill the tube than flows from the tube with a slower rate), 3. Hard to fill them up with water and making a mess. (Now the bulb is clean and you can use the small funnel included).