Numberblocks One to Five are on a mission to make discovering and exploring numbers a great big adventure! Fans can count, recount, and interact with these Numberblocks to play out their favorite episodes. These figures are proportional and work with all our other Numberblocks figure sets. Made of durable plastic with poseable arms. Collect the fun and interactive figures from the hit TV series Numberblocks! A must-have set featuring the core cast. Friendly TV series Numberblocks, an award winning show from BBC, brings math learning to life with Numberblocks Friends One to Five figurines!