Can O Worms Composter With 1000 Red Worms Compost Leftover Food Scraps The Can-O-Worms is an odorless, user-friendly worm composting system. Designed So everyone can get into composting quicky. 2 round large capacity working trays Worms eat their way up leaving rich soil behind, easy to remove, free of worms. 5 Year Product. Made from 100% recycled plastic.