forwardly of the basket 28 there is mounted upon the platform a housing 30 within which there may disposed a battery 31 fig9 along with various other devices such as wiring extending from the battery to the several electrical components of the aid etc no attempt has been made herein to illustrate the particular arrangement of the components within housing 30 since obviously this can be varied according to the needs or desires of the particular manufacturer preferably however the basket 28 is held in place through the provision of a flexible connecting element 32 secured at one end to housing 30 and extending upwardly therefrom the upper end of the element 32 being attached to a clasp 34 carried by basket 28 in this way the basket 28 is detachably connected to the rollable assembly in such fashion that any unauthorized attempt to remove the basket would be quickly detected by the blind person while at the same time permitting the user to remove the basket whenever he or she should so desire mounted upon the housing is an upwardly extending rod like sensing device 36 the lower end of which is resiliently supported through the provision of a coil spring 38 attached.