Size and pressure can be adjusted by adding or reducing air (pump and needle not included). Special Note: Some distortion of the imprint can be expected and ink coverage can vary. Due to the nature of the material, uniformity of the imprint cannot be guaranteed and may break up. Because they are hand made, no two inflatables are the same. Safety Advisory: These products are not intended for use by children under 8 years old or pets. Inflatable color may vary.