Pack of 30 Vape Rings Bands made with Silicone 21mm Vape Ring Bands Serve as a Bumper for Your Tanks and Can Save Your Mod from Minor Scratches; Vape Rubber Bands Gives Extra Grip When Holding Your Mod, Especially in Wet Conditions; Vape Bands width 7mm0.275 Inch; Vape Bands inner diameter 21mm0.826 Inch; Package include: 30pcs Vape Bands (Note: we send mix colors by random!)