This is our new 510 long mtl drip tip, it is made of delrin with Honeycomb design. Perfectly for MTL vaping, working for all 510 tanks. such as ION V2 MTL RTA, IJOY NIC TANK, Ambition Mods Purity MTL RTA, Insider V2 Style MTL, KAEES Aladdin MTL RTA ... Different colors for you to choose. Check below to see more details.