The Pocket sized is fit for child. It can be adjusted to fit any eye distance. It has a adjustment knob for children's eyes. It was made with a soft touch rubber, 4x30mm Adjustable Binoculars for Kids, Quality For The Price. Binoculars Are Made Of Nontoxic Natural Rubber Material, Rubber Surrounded Eyepieces Are Included For Eye Protection So Children Don't Hurt Their Eyes Or Face.Designed especially to avoid harm for a young child's little eyes. Lens with relatively low 4x zoom so your child can examine the world up close; Soft eyecups ensure a comfortable fit; lightweight; Glue-free; Neck strap so your child won't lose them; Non-slip grip; and is made from quality materials.