lethias here with the prototype for the macro "antigravity" unit. The device has uni-directional electromagnets that generate the same magnetic frequency as the core of the planet so that it will essentially repell the macro away from the surface of the earth, making him/her lighter and thusly less destructive. To help keep the magnets pointed in the right direction each individual unit is equipped with a hanging level to help the device know which way is down at all times so they can angle the magnets accordingly.

The device has prongs on the bottom of it that will press into the macros skin/scales/what-have-you and it will use some of the macros natural bio-electric energy to help power the devices which will be held onto the macro with size-appropriate nylon straps much like a mountain climbing harness.

The device located on the chest is the central computing hub for the device that stores the macros weight and size to let the magnets know how much power is required of them, and a freehanging ball bearing to measure if the macro is jumping or falling to increase or decrease the power of the magnets as necessary.