Anyone know what this piece of gear is

Advice
#1
-- Last Updated: Aug-10-14 3:54 PM EST --

the tennis ball thing, that can be seen on this video
http://www.youtube.com/watch?v=0G3wvmoj7Fo
at about 3:00?

Thanks

#2

Is it Gray?
:>}



FE

#3

Maybe a Grey Thing’s egg…

#4

tackle
for Labrador fishing

#5

I don’t know but I get the feeling
that he really doesn’t want to sell that kayak.