Introductions:This item is essential while you want to fix your damaged tail pipe or muffler. It is very easy to use, just select the correct size expander for your pipe and then insert it in the damaged pipe end, then turn the expanders turning bar till the dents are removed and the pipe is round again just like it used to be.Features:1. Brand new and durable2. Easy to use3. High strength and good toughness4. 3 different sizes make it almost suitable for all kinds of pipes5. Used for exhaust system repair and installation6. Come with a red plastic box which makes it portableSpecifications:1. Small Expander: 1-1/8″ to 1-3/4″2. Medium Expander: 1-1/2″ to 2-1/2″3. Large Expander: 2-1/8″ to 3-1/2″4. Color: Gray & Black5. Dimensions: (11.02 x 7.87 x 2.56)” / (28 x 20 x 6.5)cm( x x)6. Weight: 6.61lb / 3kg Package Includes:1 x Small Expander1 x Medium Expander1 x Large Expander