40Pcs Sand Perch Covers for Bird - Bird Perch Covers 7.5" Long x 3/8" Diameter Bird Perches for Parakeets, Lovebirds, Parrotlets, Canaries and Other Small Birds (Yellow, 40pcs 7.5" x 0.43")Brand: Birheatry Color: Yellow Features: THEYRE GETTING CALCIUM Sand Perch Covers for Bird is good for daily polishing of beaks and toes, and at the same time, by rubbing the falling sand, it is good for birds' digestion, etc.(Birds don't have teeth, so it's hard to digest the food ingested, so eat some Sand regularly and grind the food in the stomach). Which adds beneficial calcium to your birds everyday activities. FITS 3 4 DIAMETER PERCHES