This recall involves all Giant Starbuilders and Giant Stars building sets. The giant stars measure 5-inches in diameter and are made of opaque plastic. Each star has six knobs protruding from a ring-shaped center. The Giant Starbuilder set contains red, green, yellow and blue stars. The Giant Star building set contains red, green, yellow, blue, orange and pink stars.  Sold at: Small retail stores nationwide and online at Target.com, Toys R Us.com, Amazon.com and CSN through Walmart Marketplace from January 2007 through May 2010 for between $25 and $35.   http://www.cpsc.gov/cpscpub/prerel/prhtml10/10346.html