can be threaded and have a size and a thread that corresponds to standard threaded holes of devices used in surveying construction or photography the securing portion 32 can have a 8 32 thread different securing elements 3 can be supplied to correspond to different devices the length of the securing portion 32 can be shorter than the accommodating space in the device thus the securing portion 32 can be secured to the device have the device press against the platform 1 and have the gripping portion 31 press against the underside of the platform 1 this will stabilize the device on the platform 1 the neck 33 is of a size that will allow it to slide along the slot 12 while the securing portion 32 has an effective circumference that will prevent it from slipping through the slot 12 the gripping portion 31 can be any number of designs as shown the gripping portion 31 is a cylinder with grooves to increase friction in other embodiments a knob or other handles can be used as the gripping portion 31 the platform 1 defines a slot 12 that allows for adjusting the location of the device along the platform 1 the slot 12 can be in communication with the platform through hole 13 the platform through hole 13 can have a thread that corresponds to the securing portion 32 in other embodiments the through hole 13 need not be threaded the through hole 13 allows the securing element 3 to be removed in some embodiments the platform 1 does not have a through hole 13 and the securing element 3 is retained by and able to move along the slot.