This dabbing rig from glass masters Grav Labs is a perfect all-rounder for novices to dabbing experts. At 6" tall it doesn't demand huge lungs to be able to hit it but can still pack a serious punch if you want it to.
To make it even easy for you to take those extra large dabs, Grav Labs has fitting the rig with a fixed umbrella stem. Just add water to through the mouthpiece of the rig (about 1.5 inches works best) before starting. As the vaporized concentrates makes its way into the main chamber it's broken into multiple pathways by the diffuser. This makes the vapor much cooler and easier to inhale.