These buffalo skins are full grain or top grain leather. They are NOT splits. They are ideal for project where large continuous pieces are needed. The texture is rougher than deerskin or moosehide. The skin also stretches less than deerskin.
The tannery run skins are a mix of grades. They are not flawless and expect some holes and/or flaws. The 3 to 3.5 ounce skins are a garment-weight leather.
The buffalo are not killed just for the hides. The hides are a by-product of the meat industry.
Domesticated buffalo are not endangered.