Hi, welcome to our online shopping! We provide 5 sizes of steel welding elbow: 1) Steel Welding Elbow (internal diameter) 1/2" (+/-) 2) Steel Welding Elbow (internal diameter) 3/4" (+/-) 3) Steel Welding Elbow (internal diameter) 1" (+/-) 4) Steel Welding Elbow (internal diameter) 1 1/4" (+/-) 5) Steel Welding Elbow (internal diameter) 1 1/2" (+/-) For more sizes, please feel free to contact our customer service chat during working hours. Working hours: Mon-Sat 9am-5pm, excluding public holiday & Sun Note: Pictures are for reference only. Actual products may vary. Colours and sizes based on actual products.