I've made several of these at work, however this is my first attempt at something more portable. I know that there are lighter options, some guys use floor mats, some hand launch/recover, some ever use a river, tree or tall building. I prefer this 3/4" plastic because it will not blow away, keeps the drone off of wet ground and helps to level out uneven terrain. My problem though was that a 24" pad was awkward to carry long distance. So I came up with this. The circle is 16" and I use it on calm days. The green extention ring makes it a 24" pad and is used on windy days. The nice thing about it, is it fits in a backpack with my other gear.