This is the pyrex extension replacement colorful rainbow bubble glass tube for The Pocket RTA from Crafters Den, if your original glass tube is broken and want to find the backup, this is the best one for you. 2pcs The Pocket RTA from Crafters Den extended rainbow fatboy glass tube is just $8.99, cheap price with free shipping. Check below to see more details.
The Pocket RTA from Crafters Den Rainbow Bubble Glass Tube