Yes, these are spool knitters. If you like them (I find them hard to resist), there is a nice Spool Knitter Blog you might enjoy browsing. And, if you are not familiar with these 'toys', there is a pretty good post on The Blue Blog that reviews the different varieties. Link Here
And if you wonder what on earth you do with them:They make a round cord. Nice way to use your odd pieces of yarns, fibers (ie crewel pieces), etc.