My 8" and 10" spider coils kept getting caught on 4" high stuble in a mowed field, first time this field was mowed in 3 years. The 10" coil is shown here. Tried the 8" coil in the field yesterday, cover worked good. Lets me lower the coil 2-3" more. I used a piece of white PVC sheet that was in my cellar, it's a little thinner than a dime. Punched holes in it and used tie wraps, it's solidly in place, will leave it on permanantly. Might be good for the beach, I think sand would be easy to remove. Jabbo