Oumier Bulk RTA is an excellent collaboration between Youtube reviewer VapnFagn and Oumier. Bulk RTA features postless and dual coil build deck which is easy to use and operate. Oumier Bulk RTA offers a maximum of juice capacity 6.5ml. Vapers will love such large capacity without a refill for many times. I believe Oumier is absolutely a good RTA for each RTA lovers who always pay attention to the new and updated RTA from youtube reviews or blogs. Get Oumier & VapnFagn Bulk RTA Atomizer Now >> $32.99 Specifications: Size: 28*39.7mm Thread: 810 Double Coil RTA Bottom Airflow OUMIER WASP Nano RTA is a new designed, it provides with 2ml capacity and it features top filling, it is an easy way to refill and use. It just spports single coil, and WASP Nano also use PC material like WASP Nano RDA. It is absolutely a good partner to vape. Get OUMIER WASP Nano RTA Now >> $20.99 Specifications: Size: 23*35mm Drip Tip: PCTG drip tip Filling: Top filling Coil: Single coil Double Side Airflow Tank Capacity: 2ml