Everything you need to play bingo is contained in this set! Included in this set is a bingo cage, bingo balls, 18 bingo cards, plastic bingo ball holder, and 150 bingo card markers. The bingo cage is made of metal. It is 8" tall and 8" wide at the base. The cage itself is 5 1/2" tall and 3 1/2" wide. The cage spins and has an opening that plucks 1 ball from the bunch and sends it down to be called. The bingo cards are 5 1/4" tall and 5" wide. The markers come in various colors and are translucent.