The Oginov Tumbler is a brand new kind of puzzle. To move the pieces you tilt the puzzle over & one of the 5 pyramids falls over into a new position. Because gravity makes the pieces fall into place, these are called GRAVITY PUZZLES. There are six levels of difficulty in The OGINOV TUMBLER range. Level 1 & Level 2 come in this pack (Puzzle Set A). Level 1 is called THE DOTS When you have learned to solve all THE DOTS puzzles, twist open the ball & replace the pyramids with the Level 2 set
- called TRI-2.