Women’s black leather over the knee size 7 black

Women’s black leather over the knee boots worn once. Heel is 4”. Colin Stuart brand. When I bought them at a discounted price the leather On the inside of the boots was cracking off. You can see it from the outside. They have silver rings on the side and they zip on the sides. I don’t have the original box. The crackling is on the last picture. $20 was taken off when I bought them. No other signs of wear. Perfect condition other then the crackling on the top inside of boots