0 3 months during the first three months babys vision needs to be stimulated the musical nature strolls three colorful toys are perfect for this purpose 3 6 months your baby practices hand eye coordination reaching out and batting at the toys at first he randomly bats the toy causing it to sway he gradually learns to control his hand and manages to bat the toys deliberately hold them and pull them to his mouth for further exploration features caters to two stages of development bat