What is the purpose of peepers? The peepers are used as an anti-pick device to keep them from pecking at each other and/or pecking at eggs. Pinless Peepers eliminate the need to insert pins or clips. The peeper comes with the pin already attached as part of the peeper. The pinless peeper MUST BE installed with the SNAP plier tool. The tool is designed to spread open the peeper and align it with the nostril. When released the prongs to go into the nostril, holding the peeper in place. The photo shows th pinless peeper in the closed position before being opened with the SNAP pliers. Color is Orange. SNAP pliers sold separately.