3M 17207 COMMAND Holds 5.4 KG Narrow Picture Hanging Strips 4 Sets 

Command™ Damage-Free Picture Hanging, Holds Strongly, Removes Cleanly, No Nail Holes. 
Holds up to 5.4kg for thin rimmed frames. 
Contains 4 sets of Narrow strips.
Damage-Free Hanging
No nail holes
Holds strongly
Removes cleanly
Picture locks in place

Weight (KG): 0.040