1、The product is made of high-quality rubber, which is soft, wear-resistant and bite-resistant, and has a longer service life. 2、Food grade rubber, non-toxic, odorless, easy to clean, healthy and hygienic. 3、The nipple has its own cross hole to milk, so it is more convenient for calves to suck milk. 4、It fits perfectly with the milk barrel and is easy to install or disassemble. 5、The product is suitable for all kinds of small animals, such as calves. Feature: The product is made of high-quality rubber, which is soft, wear-resistant and bite-resistant, and has a longer service life. Food grade rubber, non-toxic, odorless, easy to clean, healthy and hygienic. The nipple has its own cross hole to milk, so it is more convenient for calves to suck milk. It fits perfectly with the milk barrel and is easy to install or disassemble. The product is suitable for all kinds of small animals, such as calves. Specification: Model: HL-MP71 Product Material: Rubber Product color: Red Length: 6.9cm / 2.7in Diameter: 2.4cm / 0.9in Suitable animal type: Calf Package list: 5 * Calf Milk Nipple Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.