Full Soft Silicone: The whole is made of Liquid silicone material, whole feet without built-in bones. Toes can be bent but can not be fixed posture.The whole Soles and ankles and toes are all soft and can be bent as will, just like a thick rubber band. Soles ankle Skeleton:Soles and ankles have Built-in bone,Toes without built-in bones;Feet palm, ankles can not be bent and fixed; Toes can be bent as will,can not be fixed posture, just like a thick rubber band. Toes bone:Soles and ankles have Built-in bone,Toes have built-in bones;Feet palm, ankles can not be bent and fixed,Toes can be bent fixed. All bones: Toes, Feet palm, ankles have Built-in bone;Toes, Feet palm, ankles can be bent and fixed posture as will. Difference with TPE products: looming veins and blood vessels, with real colors, more realistic;material: using platinum Liquid silicone, completely solve the quality problems of ordinary materials, no odor, no need to add flavor to cover the odor, no leakage.