100% quartz drop-in was explicitly designed to fit our oil coil banger. The small drop in securely fits inside a 14mm banger and is intended to be removed with our heat resistant tweezers. The quartz Drop-in is 2mm thick, so it won't easily crack or break if dropped.
The drop-ins are intended to keep your banger perfectly clean and allow for the best tasting hit while not wasting any material. Load the drop in with your concentrates, use the heat resistant tweezers to drop it in the banger and place your carb cap over the banger until it is ready to vaporize.