Useless machinery box; Fully assembled; Once you press the ON switch, the box will open and turn itself off, this one comes in as you can see in the picture; Set it on your coffee table or desk and wait for curiosity as it turns on; Each to be met with the little finger turning the box back off; Useless box kit; The silliest science kit you've never seen; A totally useless box that provides endless fun! Every time you flip the switch on the useless Box, a little finger pops out and turns itself off! Dimensions: 14 x 8 x 6cm; Requires 2 x AA batteries (not included).