2 PIECES: You will receive 2 pack 5.00/5.10-16 inner tubes
COMPATIBLE: 16 inch bike inner tubes compatible sizes:5.50-16 5.10-16 5.00-16 4.50-16 4.00-16 400-16 450-16 500-16 510-16 550-16 tire tubes
VALVE STEM: Metal valve stem with air cap, high air tightness, easy to inflate and check air pressure. Straight valve stem
MATERIAL: Inner tube is made of high quality butyl rubber, thickening, aging resistance, shock absorption, strong cushioning performance, comfortable riding
INSTALLATION: Before installation, inflate the inner tube with a small amount of air to shape it, check the valve position, ensure the installation direction, and ensure that it is simple to operate and easy installation and removal.