Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not For Use in Firm Soil

I purchased 5 of these and had a major problem. I needed to move the spikes after initially putting them in the ground and, unfortunately, the tops are not strongly attached to the spike so in every case the top pulled off and left the spike in the ground. I had to literally dig the spikes out of the ground. I purchased the Dramm Premium Hose Spikes #13001 from Amazon and, although I have not yet put them in the ground, they appear to be much better made. Unfortunately, they are about twice the price of the Orbit ones.