No worms.Great way to make compost. I am only selling since I decided to get a bigger composter.nn--4 x Composting tray each measuring 43cm x 43cm x 17cm deep. 25.2 Litres 100.8 Litresn--Sump for easy removal of the liquid measuring 43cm x 43cm x 11cm high 9.8 Litresn--1 x Sump Trayn--1 Base Unitn--1 LidPick up from Maidstone, Kent.