The present invention relates to an apparatus for self-retractable dishes for walking and / or training of dogs and other animals having an adjustable string length. The developed retractable lid comprises a housing comprising a spring-loaded spool wound with a string and an apparatus for controlling the length of the string, at least one means for locking the movement of the spool, the length of the string The apparatus for controlling the apparatus includes a device for determining the movement of the spool, an electronic device connected to control the means for locking the movement of the spool, a device for operating and deactivating the controlling electronic device, locking the movement of the spool. At least one actuator of the means for the actuator, the actuator comprising at least one actuator connected to a controlling electronic device, and at least one power supply.
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