Base structure of a walker used by babies to learn to walk

A walker used by babies to learn to walk comprising:

• a base frame support by a plurality of wheels, said base frame having a pair of rockers adjustably fastened thereto so as to allow the walker to have a rocking movement while on an underlying surface, said base frame having a pair of fastening portions opposite to each other, said pair of fastening portions adjustably fastening respectively said pair of rockers, said pair of fastening portions each having a guide slot, each of said pair of fastening portions having a first retaining hole and a second retaining hole in a top wall thereof, said first retaining hole aligned with said second retaining hole, each of said pair of rockers being formed of a curved rod with a pair of tongues extending in a same direction from opposite ends of said curved rod, said pair of tongues received by said guide slot, each of said pair of tongues having an elastic retaining block affixed thereto, the elastic retaining block being retained in said first retaining hole when the rocker is in a standby state, the elastic retaining block being retained in said second retaining hole when the rocker is at work.