Tube Stopper: Available in three sizes: 1/4 inch, 1/6 inch, and 1 inch. Lightweight and easy to carry, suitable for repair works and drinking water applications. Easy to Use: Attach the stopper to the compatible wrench, insert it obliquely into the PPR pipe, rotate and tighten until the water flow stops. Weld the pipe using a hot melt machine, then remove the stopper after welding is complete. Material: Reusable, rust-resistant, and durable. Constructed from plastic and metal for long-lasting performance. Function: Inserted into water pipes, the device expands the rubber sleeve by twisting the pin, effectively stopping water flow. Application: Ideal for sealing leaks in indoor and outdoor concrete slabs, wall penetrations, corners, tunnels, and similar areas. Provides reliable water stop functionality. Color: As shown in picture. Package Contents: 1 Set * Hot Melt Stopper with Rubber Cover (1 * extractor, 1 * wrench, 3 * PC heads, 6 * rubber sleeves). Note: The package includes only the items listed above. Other accessories or products are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.