The compact Greek Glass bubble spinner cap whips air and terp pearls into a smooth vortex for even vaporization inside flat-top quartz bangers. Hand-worked from durable borosilicate glass, it sports the iconic GG logo and seats securely on 25 mm to 30 mm buckets without wobble. A rounded top lets you steer airflow for full concentrate movement, while rich colors stay bright through repeated heat cycles. Created by artist Biao Tang, this cap delivers guaranteed function for low-temperature dabs. • Compatible size works with 25 mm to 30 mm flat-top quartz bangers • Spinner channels generate a controlled vortex that keeps oil and pearls moving • Thick borosilicate construction resists thermal shock and cleans easily • GG logo add authentic heady style to any rig • Hand crafted by Biao Tang, each cap features unique variations