The Greco

Not sure if its right what people say , the Greco inspered velcro.  but they sure  act like they have velcro on the feet.

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on a downward slope

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hanging around upside down

Or turning arownd upside down

Smooth or rough surface its no problem, they make a good pet around the place,   beats using fly spray to   kill flies and midges . only problem is the leave the droppings on the wall then clean themselves by dragging their back end along the wall,  cant have it all ways I tell myself.   I mean house training.