It is aluminum film, color uniform, spherical beautiful. This product can be used for birthday party, baby shower, anniversary, give away gift and banquets,wedding arrangements,holiday party and other theme party.You can design beautiful scenes for youself. After the inflation is completed, pinched flat the ball, ball mouth comes automatically sealing glue! balloons can be used anywhere anytime and by people of all ages. Everyone loves balloons. Bring color into a party with great balloon art.