Let your creativity run wild with from your very first BRIO train experience! If you combine your Circuit into 8 traveler reference 33773 or your 33878 Freight Transport Start-up Circuit with these additional rails, this will immediately give you the opportunity to build many different circuits (5 possible circuit diagrams with plans provided). More rails = more playtime, and of course, more fun ! •  Product reference: 33394  •  Number of batteries: 0 •  Age: 3 to 7 yearsResponsibly sourced wood: From sustainably managed forests (FSC or PEFC certified)Weight: 740 g