Material: The pipe connectors are made of injected plastic, strong, durable and long service life Size: suitable for pipes with an inner diameter of 13mm and an outer diameter of 16mm , suitable for most pipes You can get: 8 x 16mm tees; 8 elbows of 16 mm; 8 straight bits of 16 mm; 8 x 16mm end caps; 2 x 16mm valves Easy to use: Hose fittings can be easily installed without any additional tools. Fits most tubes around 1/2" . 520 ID Range - Impact resistant plastic construction - Ideal for garden greenhouse, flower beds, patio, lawn Features: 1. Our drip irrigation kit is made of impact-resistant plastic and in large quantities. The different kits meet all of your drip irrigation systems. 2. Compatible with all 1/2" 16mm (0.220-0.544" ID) irrigation hoses. 3. The barb design makes it easy to connect the drip connector to the hose to prevent leaks. 4. The pipe connector can be easily installed without any additional tools. A great solution for household appliances and outdoor gardens. Contents: 8 x 16 mm tee 8 x 16 mm elbow 8 x 16 mm straight 8 tips of 16 mm 2 through valves of 16 mm Features: Material : plastic. Size: 16mm. Quantity: 34 pieces. Color: Black Features: 1. Compatible with all 1/2" 16 mm or drip pipes. 2. UV and impact resistant plastic. 3. Made of linear low density polyethylene . 4. Safe and easy installation without glue, tools or pliers. 5. Recommended for 0 to 50 psi operating pressure. 6 .Barbed ends for a secure, leak-proof connection.