1A lead manufacturer of 3D puzzles 2. Professional designer 3. Eco-friendly materials 4.stable supply ability 5.ICTI audit 3D Puzzles of the St Basils Cathedral 1.Made of Eco-friendly paper and EPS board2.Need no tool during assembling3.The assembling process is safe4.Durable packaging fit for long-distance transportation5.Teach through lively activities (edutainment)6. The quality of our ...