Thriver Screw-In Calf Teat is designed to improve the feeding experience, providing calves of all ages with a secure, natural, and comfortable latch. Proudly 100% designed and manufactured in New Zealand, this screw-in teat incorporates advanced features for effective feeding with a leak-resistant seal. Made with the same durable, soft rubber and precision engineering as the trusted Thriver Pull-Through Calf Teat, the Screw-In Calf Teat ensures consistent, reliable performance.