I picked these up to add a wee bit of variety in comparison to my other handcuffs (which are black), and they delivered just as well as the other pair did. My favorite quality is probably that they're (alongside the black ones) my first proper police issue professional handcuffs; like their black painted brethren, they are a single-use toy and will likely not fit on most ankles unless you have scary thin ones.
Due to their metallic nature, the one thing I did notice was that they attract fingerprints just as much as a glass window does which is extremely easily; they are a solid construction, and as long as you don't abuse them (outside of struggling which by the way can lead to bruising or soreness if you're a real fighter), they will last a long long time.

If you get lube or whatever on them, just wipe them down with a slightly damp cloth and dry thoroughly afterward so not to cause rusting; that's pretty much all there is in terms of cleaning/maintenance as they can be stored just about anywhere and are fairly compact.

Steel (what they're made of) is very unforgiving so please be careful - especially if you're using these alone. I would not suggest locking these on behind your back as if you face the holes away the wrong way there ain't any way you're getting out of these - even with the keys; more than likely, you won't be able to reach the holes due to the very short chain between the two cuffs.

These cuffs come with two keys. The dual-locking cuffs from Spartacus have universal keys, so ones from another dual locking set will work with these and vice-versa. As for the dual locking mechanism itself, each key has a small prong on top of it which can be used before or after the cuff(s) are secured on your wrists or your victi- I mean partner, to push in the little buttons on the side of the cuff (opposite to the keyholes) which prevents the hinged half of the cuffs from moving at all making these really hard to get out of unless you're a magician.

I love these handcuffs and am more than satisfied with my purchase and hope they last a really really long time, and I think they will!

These bad boys are just as sturdy and shiny as the day I got them, I really am happy I made this purchase as these are great quality affordable rock solid cuffs that won't meet the garbage bin anytime in the next year or two if ever; thus I still recommend them for those in the market for good quality budget cuffs with no safety release.