Slide this little ditty on to connect a 14mm male joint to an 18mm male joint. This useful accessory is most popularly used to transition a dab rig into dual function with a dry herb slide. A frosted ground glass finish anchors each end into place for a sturdy and stable glass-on-glass seam. This thick glass adapter also features rivets to secure a keck clip to further lock each piece into place. Keck clips and every combination of size and gender joints are available right here in Boo’s online shop. Such a simple addition can double the value of your investment in a quality pipe by elevating it to dual compatibility. The clear glass aesthetic adds a flare of scientific style with clean modern lines and contours. This 14mm Female to 18mm Female Glass Adapter ix an exquisite addition to every pipe collection. The mix and match opportunities are endless!