I have found this to be much better than the Estes version, so much easier to use, and it holds its shape better, and crumples into a much nicer shape allowing it to form a piston really helping to eject the recovery system.

This wadding is too stiff. It will easily become compacted in tube and difficult to eject causing failure of recovery device and damage to rocket and a danger in descent.

These wadding sheets are 5.5 x 5.5 and work very well in larger diameter rockets 1.9+. I like them better than the estes wadding for use on larger rockets.