The dispenser is designed to protect unexposed periapical dental film packets from penetrating radiation. It consists of an x-ray resistant metal container with a removable top and a separate wall bracket. The dispenser is designed to hold up to approximately 150 size 2 single or double packets, or one carton's worth of film. It comes with easy instructions for installation and use. Model 2 Size 2 Super Poly-Soft film only.