General description Specially designed for feeding orphaned lambs, this 40 Pieces Lamb Series Nipple Feeder Bottle Topper mimics the shape of Mama Ewe. The float valve allows for air circulation, preventing the lambs from filling up with air and ensuring the bottle does not collapse. Technical specifications Color: Yellow + Red Material: Silica gel Size: 30 x 57 x 12 mm Package Contents: 40 x Animal Pacifier Measurement allowed error: +/- 1-3 cm Compatibility and accessories Easily fits on most bottles, including 2-liter carbonated bottles