New. Supporting the milk hose and pulsation hose properly can make a difference between a good clean milk out and squawking and vacuum loss at the teet end. Herringbone stalls are espically difficult. The Handy Comfort are is a complete unit the offeres adjustability and support for your cows comfots. This unit is specifically for the left side of a 30 degree herringbone parlor. The Handy Comfort Arm comes complete with arm, cabinet, chain, clamp, hose retainer and mounting bracket for Stangko pit edge. Detacher and cylinder are not included.