3 ms·Ok, but how can you tell the two apart?by bullen 7y agoOk, but how can you tell the two apart?tyingq 7y agoSpringy/spongy/wet/heavy feeling vs mostly stiff/dry/light.bullen 7y agoOk, so stiff/dry/light is polyethylene = good?tyingq 7y agoYes.