I do not usually sell this type of straps for the simple reason that I cannot compete with the super-cheap, bad quality products that we see around. I simply refuse to buy/sell poor quality products, just because they are cheap.
This line of straps though, I liked it. They are made of a very nice quality oil-treated premium calfskin that is 28cm long (excluding the upgraded stainless steel buckle) and I can sell it at a very decent price. They come in 6 colours and 2 sizes (20mm and 22mm).
I will include a pair of good quality Swiss spring bars with every strap. Feel free to contact me for whatever questions you might have.