Please look at photos !!! You are bidding on all Lot Of 4 - Newtons Cradle Steel Pendulum Balance Ball Science Desk Home Office Decor Gifts * STEEL METAL DESKTOP WORKS MIB . About 4 inches square . High quality . From my personal collection ! Feel free to ask any questions !

Positive feedback is very important - Thank you, Lars : )

POSITIVE FEEDBACK IS VERY IMPORTANT ! - PLEASE -