APPLICATION FUNCTION: Can be used with teat cup, easy to install and remove. In perfect diameter, lenght, hardness, and to hard working conditions. PERFECT DESIGN: Design for milking machine, easily clean. The minimalist design style makes it very suitable for use and is very popular among customers. PREMIUM MATERIAL: Made of quality rubber material, soft, good toughness, . is our goal. OUTSTANDING ADVANTAGES: Safe liners, no harm to animals, long service time. The product is stable in performance and used by customers who say it is good. SCOPE OF APPLICATION: Suitable for cow, goat or sheep milking, not leakiness out milk. Their inner surfaces are very smooth clean and contains no harmful deposits. Description: Milking Machine Liners, 4 Pcs 12.5*2.3in Black Long Rubber Soft Rubber Inflations for Cow Milking Machine Simply Installation Accessories Specifications: Colour:black Material:Food grade rubber Size:318*23mm Package Contents: 4* Milking machine liner Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.