This is a gravity toy.
1. Add some sand at the bottom half ball through the holes. The sand won't come out due to the inverse funnel effect.
2. Insert a photo in the top "mouse" holder. You may want to cut your photo into oval shape to fit the mouse.
3. Try to disturb it a little, it will always swing back.
3.034 w x
2.972 d x
1.194 w x
1.17 d x