Granny sex dolls have been ergonomically adapted to the elderly, and their joint range of motion is 30% smaller than that of ordinary sex doll torsos to prevent excessive sprains. The built-in constant temperature system can maintain a body surface temperature of 38°C, which is more friendly to elderly users with slow blood circulation. The specially designed soft skeleton with a memory foam filling layer will not compress osteoporotic parts even if you lean on it for a long time. This safety consideration is the core reason for recommending granny sex dolls.