Goat Assembly Unit by Melasty Provides all the parts you need from the udder to the bucket lid. Features Clear plastic goat shells (2 pcs) with silicone goat liners (2 pcs), clear plastic milk hose 8 Ft long inside diameter 1/2", pulsator hose is attached to the milk hose 8 Ft long 1/4 inside diameter. Semi automatic Goat Claws. Fit the liner to the teat and the valve automatically opens. When you have finished milking, just pull the liner slightly to detach the unit: this lets in air which closes the valve. Washing is fully automatic. The claw starts "normally closed", to prevent vacuum leakages at the activation of the milking machine, this provides more stable vacuum in your milking system. This gives a range of benefits: Less work for the operator during milking and washing. Valves close automatically if the cluster is kicked off. Less vacuum fluctuation when liners are fitted and removed, thus avoiding vacuum drop or intake of dirt. Ability to isolate an unhealthy teat during milking. You can use the assembly set to milk 1 goat.