These are the same bar plugs that come with the Jones H-Grips. The bolt and nut is stainless steel and will not rust over time. These are a great option if you want a bar plug that covers the end of the grip. The bar plugs have a captured nut in the wedge so that when you loosen the bolt to remove the grips, the nut stays in place and the plug comes right out! Approximately 29 grams (1.02 ounces) for the pair. Sold as a pair (2 plugs).