1、Assembly Car Model: This building blocks set recreates a detailed racing car model, featuring headlights and cool opening doors, providing dynamic play experience for kids 2、Pull Back Feature: The assembled racing car toy features pull back function, allowing stable motion release while maintaining structure that withstand repeated play sessions 3、521 Pieces Blocks: This kit provides 11 packs of small building blocks, totaling 521 pieces, allowing children to learn creativity and challenge their imagination while playing 4、Safe to Play: These building blocks have a glossy appearance, no burrs or tips, suitable for children 6 years and older, kids can touch and play with them with peace of mind 5、Fun and Practical: These racing car building blocks have bright colors and rich detail design, which can attract children attention and make it a fun toy or practical presentItem Type: Car Building Block KitMaterial: PlasticAssembled Size: Approx. 23.2 x 13.6 x 7.2cm / 9.1 x 5.4 x 2.8inPieces: 521PCSRecommended Age: Over 6 Years OldFeatures: The assembled racing car features exquisite details, with pull back action function, accompanying lights, and cool opening door, providing players with a more real visual experience and play.11 Packs Building Blocks1 x User Manual1 x StickerChildren should play under adults supervision to avoid swallowing small toy parts.