The new 316 stainless steel Restrictor Disc offers ease of use across all Sticky Brick Lab products by enabling bigger flames and little to no technique. Our goal was to find something that fits in all of our devices, greatly reducing the chance of combustion to make our products easier to use and more accessible to everyone, while also having something easily removable for users who prefer a more manual technique and full throttle extraction. We think the new Restrictor Disc hits all these marks. The Restrictor should fit down through the flame intake hole towards the bowl area. On some earlier devices the flame intake hole may be too small and the Restrictor can be turned upside down and placed into your flame intake glass. Instructions will be included with every 2-pack.