Construct the ultimate Micro Chargers race track with the Track Extension Pack! This must-have track pack for every Micro Chargers enthusiast comes with 21 track pieces 25 connectors and an instruction booklet. The track possibilities are endless! For even more action kids can connect other Micro Charger tracks to configure their own layouts and build the ultimate race track Micro Chargers Track Expansion Pack 46 Pieces Go further than ever before with the Micro Chargers expansion pack With 46 additional pieces of track boys can extend lengthen and mix up their Micro Chargers tracks like never before Comes with 21 track pieces 25 connectors and an instruction booklet Compatible with all micro chargers tracks Recommended for ages 6 and up Brand is Micro Chargers