Block Mates build upon the foundation of unit blocks by providing children with a themed exploration set. All Block Mates are designed to fit standard unit blocks and can be built in their natural form or mixed and matched with others in the set to create new, imaginative creatures. The patented gasket design is created for a snug fit. There are five characters per set. The Safari set includes Gorilla, Rhinoceros, Elephant, Alligator and Lion. Blocks not included. There is not a toy in any market like Block Mates™. "They bring new life to a store's unit block sales and they are not marketed in big-box stores. They can be sold as an educational toy or a creative toy," Dave Ruddock, digital imaging and design for Guidecraft, told TDmonthly. This product received a Best of 2008 Instructor Teacher's Pick award and a 2008 and 2009 Oppenheim Toy Portfolio Gold Seal Award. Launch date: October 20, 2008.