Replacement Double Sided ABC Blocks for VTech Sit-to-Stand Alphabet Train Go to amazon.com Related posts Best vtech alphabet train for 2024 FeatureReplacement ABC blocks for the VTech Sit-to-Stand Alphabet Train13 Double-Sided Blocks Included DescriptionReplacement ABC blocks for the VTech Sit-to-Stand Alphabet Train. 13 Double-Sided Blocks Included.