Silicone Shape of Ball Tissue Expander for Implantable Expander. U-Shape Injection Port: Prevents piercing or diagonal penetration during injection procedures. Self-Closing Performance: Injection block ensures no leakage for over 50 actual injections. Built-in Refractive Seat: Avoids wound exposure and reduces the risk of infection. Tight Connection Design: Conduit and shell connection is tight with uniform inner diameter. Multiple Sizes Available: Offers 20 different volume options ranging from 100ml to 1000ml. ISO13485 Certified: Product meets international quality management system standards. OEM and ODM Services: Provides flexible customization from samples, designs, or full customization. Symmetric Expansion: Ideal for breast, face, or scalp areas requiring uniform tissue expansion.