On A Level is a neat little dexterity puzzle handmade by Phil Wigfield of the UK.
Inside the cylinder are 7 stainless steel ball in varying sizes. The largest ball is stuck on one level but the others can travel between the two sides through the holes. The aim is to position all of the balls on their specific holes to create a nice tidy shelf.
This is perhaps the easiest of the dexterity puzzles by Phil but still requires a steady hand and some problem solving.
On A Level measures roughly 38 x 38 x 24mm.
Limited to only 100 puzzles, each one is numbered on the underside.