So far, R'Gretta Jus (Greta) has not been able to remove them or go under them; however, she has learned to dig next to them where one isn't yet.
The 10 pack is great product. Really well built and easy to drive into the ground.
Great Product! Works as advertised! Install could not be easier!
Love the concept but in actuality the channel is too wide. Slides and moves a lot and spend a lot of time and energy trying to hold it steady and with a lot of vibration. I think it should be narrowed to just wide enough to slip over the top on the bars. Also maybe adding a silicone or rubber pad to absorb a little vibration might not be a bad idea. Quality of materials is solid however.