D-eing connectors, metal fastenings of special design and heavy duty materials, perfect aligned stitching with no defects and smooth material that harms no type of skin at all. What else can you find for yourself other than this great set of spiked cuffs made by Ouch! Genuine leather and nickel-free metal for your safest comfort while playing. 6 holes on straps to find your perfect size and make the submissive obey and beg for mercy this evening! Can be combined with any toys of Ouch! series or such of other manufacturers thanks to universal design.