If there are missing & broken pieces: Please tell Wish Support that you need us to send replacement to you. We will resend those pieces with trackable parcel. We don't charge any fee. Pieces Count: 300-400 pcs/set Packing: 4 sets/pack, the picture shows they line together, they don't lock to each other Features: Very lovely finished set Packing: Without original box, include sealed bags of bricks and instruction manual Bricks Size: Mini bricks Gender: Unisex Age Range: 6 years old and above Classification: Assemblage Plastic Block Shape: Self-Locking Bricks Material: Plastic Plastic Type: ABS Note: This products are Mini, Please check out the size before placing an order. （Not compatible with LEGO) High quality material and harmless ABS are perfect to processed into children toys, it makes you don't worry about your kid for touching it. Kindly note product Without Original Packing! But have new sealed PE bag and box, thank you. Children should be warning in adult care use, do not put toys, thrown each other.