Excellent value for money. I just installed a plug in the tire that received the bolt and did a soapy water test. As you can see in the photo, no blistering means no leakage. This is the second tire repair kit I've bought. The first was almost the same as this one, just with black connectors. I returned it after trying to patch the same hole and failing the soapy water test. This kit includes thicker red plugs. The tools in this set are plastic coated and come with cheap gloves that will definitely help you grip the tools. Tips: Do not attempt to install the plug before using the reamer to penetrate the steel band, as you may damage the insertion tool. Use lubricant as thicker plugs require more force to insert. Insert the paste tool straight. The two prongs of the insertion tool are thin and can break. Clean the rest of the connector from the instruments with isopropyl alcohol.