The Uwell WHIRL T1 Kit is only compatible with the Uwell WHIRL T1 Refillable Pod. It is made of PCTG food-grade safe material, has a 3ml capacity, and is simple to refill. With a pre-installed UN2 Mesh-H coil and Pro-FOCS Tech, the Uwell WHIRL T1 Refillable Pod offers a rich and authentic taste that improves flavor and makes for a great DTL vaping experience. No longer does a coil change or leaking need to be done. The WHIRL T1's strong bottom magnet provides a flawless fit with the mod. You can more easily find the vaping habit that suits you thanks to the 3-level adjustable airflow; just slide the block to change the airflow. Refill your juice using a child-safe cap rather than one that has a cap. 2 pieces per pack.