Concentrate RigBlaze Glass Concentrate Rig Whether you are into oil, wax or other concentrates this is the perfect glass tube for you. Made from premium quality borosilicate glass, or pyrex to you and me, this perfectly formed glass dab rig is durable, heat resistant and sure to hit the spot. This oil rig comes complete with an integrated showerhead perc and a stainless steel dab nail with glass dome, so you're ready to start dabbing straight away.