This combination set contains 40 track connectors and 76 BiOBUDDi building blocks, both made from fully sustainable bioplastic and ideal for imaginative wooden railway extensions and new building projects. The Track Connectors are compatible with wooden tracks from many brands such as Brio, IKEA and HAPE and can also be attached to LEGO Duplo and similar building blocks. The bio-based BiOBUDDi building blocks included in this combo pack, which can be combined with Duplo, are also made of sustainable material from sugar cane residues and are safe and non-toxic. The result is a versatile addition that connects wooden tracks with other building elements and encourages creative constructions - perfect for building railway tracks, ramps and exciting structures together that combine stability and flexibility. Contents: Track Connectors: 7 pieces Simple Connector (Simple) 5 pieces Adapter Connector (Blanky) 4 pieces Counterpart Connector (Tab) 21 pieces Support Connector (Supporter) 3 pieces Cross Connector (Cross) 24 pieces Incline Element (2x2 Steep) BiOBUDDi Building Blocks: 36 pieces 2x2 BiOBUDDi building blocks 16 pieces 4x2 BiOBUDDi building blocks Note: Trains and wooden railway tracks are not included. In addition to the versatile connectors, the Alpha Boosterz Track Connectors Set also contains a selection of BiOBUDDi clamp building blocks that offer even more creative possibilities. These building blocks make it possible to easily integrate wooden tracks from renowned brands such as Brio, IKEA and HAPE into higher levels and new shapes. The included BiOBUDDi building blocks can be used to build stable, dynamic tracks with ramps, crossings and complex track layouts. The set not only encourages the imagination and creativity of children and parents, but also provides the necessary stability and flexibility for exciting wooden railway projects in all dimensions.