This milking lid has a locking handle for long-handle buckets. The two-nipple design features exceptional workmanship and fine polished stainless steel construction. ID of the lid is 7-/8". Lid fits buckets which measure 5.7" (145mm) between top of bucket and bottom of handle. Nipples are 5/8" ID. Gasket is included. Wt. 2 lbs