Puzzle is one of welcome games that never go out of style. It can effectively inspire people's thinking, train their thinking, judgment and patience. Great gift to your friends for any puzzle lover! Back sides of puzzle pieces are marked with English letters and divided into areas. Puzzle finish size:26" x 26"/65*65cm. Be made of non-toxic,environmentally friendly material,pass ASTM test,thick and sturdy Great entertainment for playing at home when you are rest. Great for parents with your kids finishing it together and improve relationship between parents and kids It helps develop hand-eye coordination, concentration, fine motor skills, gross motor skills, spatial awareness, problem solving, shape recognition, memory and self-esteem. Missing Support：If there is missing pieces or any other questions, please send the picture to our service and we will exchange a new one for free