Precision Pipe Fit: Before purchasing, it's crucial to verify that the water pipe leak repair clamps are compatible with the dimensions of your water pipe to prevent mismatching. If the outer diameter of your pipe measures 20mm, then this repair clamp with an inner diameter ranging from 19mm to 21mm (equivalent to 0.73 to 0.76 inches) would be an ideal choice Quick Fix: The pipe repair kit consists of two separate halves, eight pairs of bolts and nuts. Just place the repair clamp over the pipe crack, join and tighten the bolts. This ensures even pressure distribution, making the installation simple and quick Wide Use: Pipe repair clamp for sudden pipe bursts or cracks. Provides fast water leak control without requiring complete pipe replacement. Pipe repairer is suitable for cast iron pipe, cement pipe, PVC pipe, PE pipe, etc Quality Meterial: Crafted from high quality PE material, the pipe repair clamp is impact-, crack-. Aging- design maintains integrity under high-pressure water flow for long-term leak protection Customer- Service: We prioritize customer satisfaction and offer a reliable after-sales. If you encounter any issues or have questions regarding our products, please don't hesitate to let us know colour: Black material: Pe Package Contents: 1 * Pipe Repair Clamp Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.