Lightweight aluminum riddle/screen with four screen sizes. Great for bonsai and containers when you want to either layer soil size or just refine soil. Good for seed starting and sifting compost. Also good for sifting fertilizer onto any garden space. Sieve is 11.75" in diameter with 3 interchangeable screens of 3, 5 and 10 mesh per inch. Made in Japan. This one has been around for a LONG time so you know it's good.