Petrol strimmer

Can't give recommendations for amateur strimmers but we used  Stihl  strimmers where I worked and they were very efficient at what they did. I like the heads with a large buutton in the middle that you could tap on the ground and it automatically let out a fixed length of cord.
I am a fan of Stihl stuff but it is quite expensive. Our strimers seemed to last forever though and they were used day in, day out, during the summer.

Thanks Vinny will take a look