Price reduction and individual sales are not possible. They are sorted by type (first image). These are casters of roughly the same specifications. There are individual differences, so please adjust as needed. These are used items. They have all been washed thoroughly with water. There are many scratches and stains. There are traces of double-sided tape and dust from temporary fixing. They were used indoors. There are 3 with stoppers. I don't remember the weight capacity, but I remember buying ones that seemed quite high and sturdy, with good durability. I used to have a cat. Please refrain from purchasing if you are concerned. As these are used items, there are some burrs on the screw holes. Please be careful not to get injured.