This good-sized decorative box is an attention grabber!  Kugel translates to "ball", which may give you a hint as to this puzzles clever solution! Measures approximately 19.6 cm x 13.5 cm x 7.3 cm / 7.7 in x 5.3 in x 2.9 in.
Made in laser-cut wood and stainless steel by Jean-Claude Constantin. Jean-Claude Constantin lives in Germany, where he designs and manufactures many different wood and metal puzzles, as well as magic tricks.

• See at Puzzle Master