Product Content- The Handle Wedge Kit contains 7 sizes of wedge accessories. The included sizes are 0.31"/8mm, 0.39"/10mm, 0.47"/12mm, 0.55"/14mm, 0.63"/16mm, 0.71"/18mm, 0.78"/20mm. The 7-piece set Preferred Material- The safety round wedge is made of high-quality iron, which is rust-resistant, corrosion-resistant, not easily deformed, and is stronger and more durable than the wedges on the market. Wide Applications- Suitable for reinforcing various types of hammers, axes and other tools. They are the best helper for carpenters and construction workers, providing greater convenience for everyone's work and life. Sturdy Design- The wooden structure makes the installation more solid, not loose and not falling, so you can completely get rid of the trouble of loose and falling off of tools such as hammers, axes, etc. NO RISK PURCHASE - Just try our products and we believe that you will love them as we do, If you dont like it or you are not satisfied with it, you can email us and we will provide you with a solution, we are at your service and will try our best to do it well for you.