Avataq Greenland Rolling Floatation Aid. Comes with several grab loops for ease of use. Easy to inflate / deflate. Traditional flotation device used to teach rolling in the Greenland community.
 
The Greenland people originally used these seal skin bladders when harpooning sea creatures. Now we use them for something much more benign: to learn the gentle art of righting your kayak via a roll. 
 
This item is returnable if it has not been used/wet.