... . Spec 35*35*35CM 2. Size: 1KG-10KG/4LB-25LB 3. Color: All kinds of colors 4. Material: Regular PVC Leather ... diameter 36cm for all sizes.2-There are pound and KG sizes.3-Spec:4lb,6lb.8lb,10lb,12lb,14lb,16lb,18lb ... strong PVC leather and not easy to break.Size:1) KG:1KG,2KG,3KG,4KG,5KG,6KG,7KG,8KG,9KG,10KG ...