Prevue Pet Products Cal-Sea-Yums combine hours of beak exercise and trimming with natural sea shells and vitamin-fortified treats. Easily connected to your cage with quick-link attachments and made from 100% non-toxic materials Cal-Sea-Yums may include latex ropes rings beads natural sea shells and calcium-enriched wafers. Our Cal-Sea-Yum Dollar is 6 1/2in Long and 6in Wide ideal for Small and Medium birds