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Old 13th May 2009
Lives for gear
JWL's Avatar

It depends on which absorbent material you use. If you use 705, it will hold its shape pretty well on its own. But this is the most expensive material you can use, so if you have that in your budget then you can probably just pay for some nicer frames, or just build premade traps.

Rockwool is a bit floppier. Ultratouch Cotton is much floppier. Both of these need something rigid to keep them from sagging.