I've only ever owned one 3D target.
Bought it when I lived in Australia.
If an when I buy another one I'll put it away after use for two reasons.
#1,the sun made my first one start to split along
the seams,or moulding joins or what ever they are.
#2,I had some fool jump my front fence an try to steal it,,,,during the day,,,while I was home sitting in my lounge looking out at my front yard.
Even my dog had a hard time beliving what he was seeing,,,,,for the first 10 seconds,,,then it got funny!!