The silicon gel sleeve is directly connected to the stump, which can avoid these deficiencys existing on old model of receiver cavity, such as ponderosity, temperature preservarion, shoulder staps in need and trouble to wear.2. Actions of fners are controlled by moving thumb3. Wrist Joint can be rotated passively4. Poke elbow handle joint can make the elbow joint passively extend and fex5. Three/fve fgers with short Glove.