2.5 lb Stainless Steel Tumbling Media Pins, 0.039 Inch Diameter, 0.255 Inch Length

The pins do exactly what they are supposed to do, and they do it well. I use them for cleaning both nickle and brass cartridge cases, range pick ups.

Was highly recommended on a variety of youtube videos for cleaning ammo brass. I agree

Typical stainless media. Gives all of my brass an excellent shine when combined with dish soap and some citric acid

Perfect for tumbling brass. Makes a ferocious mess if you drop it on the floor. Cleans up easy with a strong magnet. I take a strong donut magnet and put it in a ziplock bag. Then drag the bag over the medium or through the brass to pick up the media. Put the whole thing in a bucket and then remove the magnet from the bag. All the media falls into the bucket. So much easier than trying to shell stuck media off the surface of the magnet!

I use these for tumbling brass. These are awesome as you can just clean them instead of throwing out corn cob media. They are an expensive initial investment, but if you reload often like I do worth it. These things are very very loud though. The reason I give three stars is I would buy an ultrasonic cleaner if I could do it over with the money. If you dont want to deal with the ultrasonic cleaner, this is definitely a lot easier to use as you just clean the tumbling media and the tumbler and thats it. Not need to worry about vibration rates or dilution ratio of your cleaner. Just throw it in and turn it on. So I think it is great for cleaning brass as it doesnt need to be perfect. If you want perfect, get an ultrasonic cleaner.

This product worked better than I expected.

The stainless steel medium works fantastic. Cleans the primer pockets and the inside and outside of the shells. Add a little lemon fresh and they look new.

Use this for cleaning cartridge casings and small parts in conjunction with a tumbler.

Arrived on time, product came in a plastic bottle inside a box, much better than the pictured item inside a plastic bag

I bought it to use in a rotary tumbler which proved far to noisy when in use. Now I use it in my vibration tumbler, and the results are good, though the media is heavier than the walnut polishing material I personally like. For my purpose, the walnut material is easier to use, but the stainless steel media I think gives a better polish. BTW I de-prime my spent primers before cleaning.