A heavy cuffs and collar set I just recently completed, with sewn-on suede inner lining for long-term wear comfort.

I say heavy due to them being 2" thick, with a heavyweight leather used in the making. The only thing heavier than what I use would be considered Armor leather, for things such as shields and defensive leather armors.

there are 3 D-rings on each cuff and the collar, 2 anchored in place on each with a third sliding freely between the first two for ease of comfort in restraint, the wrists given a degree of rotation while bound. The free-sliding D-ring on the collar can also serve as a popular leashing point,without outright twisting the collar to and from on the neck.

A heavy set like this can get costly, depending on the amount of material required, hardware desired (buckles, rings, rivets, etc) especially if I have to order the materials needed for the order. The quality of the product I always guarantee to not be the novelty shit you get at the porn stores. I use genuine leather, strong enough to last you for years.

I am not a mastercrafter, but I always strive for the best quality work I can put out.