Check the listing for details. Cow Milking Cluster 200cc Silicone Liners (Size: Medium)/Acrylic Shells, Melasty. Condition: New. Listed at 104.99 USD. Cow Milking Cluster (200cc) with Silicone Liners (Size: Medium) and Acrylic Shells, by Melasty 1.- Allows you to see the pulsation rhythm in the liners. 2.- Allows you to see the pulsation rhythmic that stops moving due to the tear vacuum hose attached to the teat cup. 3.-Allows you to notice the bending of the liners that may occur. 4.-Allows you to see milk leakage that may occur as a result of a puncture in the liner. Milking cluster includes: (1 ) 200cc Milking Cluster (4 ) Silicone Liners (Size: Medium) Liner Dimensions: Length: 12" Diameter (at teat connection): 24mm Diameter (at cluster connection): 9mm (4 ) Short Air Tubes (4 ) Acrylic Shells Shell Dimensions: Diameter (bottom): 1 5/8" Diameter (top): 1 1/16"