Minimal dents or wear to the can or lid. If you are looking for multiple buckets for a small dairy or herd share I can provide pictures of the others.
See my other listing for milkers with smaller Surge Vaccum saver shells with Magnaflex 402 narrow bore liners that are for small/med teats and great for use with goats. You supply the vacuum pump and length of hose to run from pump to pulsator. Hose length depends on location or distance from milking room and power source for pump.