The 10mm GRAV® Cup Bowl is compatible with any 10mm female joint and features a glass maria around its stem for safe handling. The cup bowl's limited capacity is designed for use with smaller water pipes and Helix™ pipes GRAV® 10mm Cup Bowl *IN HAND* (SHIPS ASAP) BRAND NEW IN HAND READY TO SHIP ASAP! FREE SHIPPING Buy with confidence check my feedback Questions? Feel free to message me