1、Indication Screen: The sliding block puzzle has built in more than 500 electronic question banks, and questions are automatically issued through the built in indication screen 2、Progressive Difficulty: The digital sliding block puzzle has a progressive difficulty design, players can easily start the game from a simple start 3、Interesting Color: The chessboard and each piece are installed with magnets for glossy feel. with black chessboard and red, yellow and blue pieces for fun 4、Multiple Modes: Long press the L key of the sliding block puzzle toy to enter the teaching mode, long press the C key to enter the challenge mode, you can enjoy a happy gaming time with your friends 5、Digital Stickers: The travel games toys are equipped with digital stickers, which can be pasted on, and can be regained in order after moving the pieces Item Type: Sliding Block Puzzle Material: Plastic Length: Approx. 18.2cm / 7.2 in Width: Approx. 13 cm / 5.1in Height: Approx. 2.5cm / 1.0in (manual measurement, there will be 0 to 1cm/0 to 0.4in error) Level: 530 Levels 1 x Sliding Block Puzzle 1 x Digital Sticker 1 x User Manual