The Box of Brass Screens comes in packs of 100's with 5 screens in every pack. These brass screens measure at approximately 0.75" in diameter. It is made with 60% copper, 40% zinc and comes with a gold color finish. These brass screens a safe an is ideal for reaching the desired temperature level for your ground herbs or flowers. It is very affordable and with the right amount of temperature, won't be harmful during combustion. Get a box of these for only $29.99 at KING's Pipe Online Headshop, your one and only shopping destination for all your smoking needs!