Write the name of the recycling category on the stickers and stick them to the trays. Includes 30 cards to represent 5 recycling categories: glass, metals, paper & cardboard, plastics, and non-recyclables. Have cards face up, pick a card and then put it into the correct tray. The teacher guide shows the correct tray for each card. 8-page teacher guide explains each recycling area. Ages 4 and up.