Free Express Shipping! Aladdin Ball Head Stand Mount with 16mm Stud Compatible with Bi-Flex1, Bi-Flex2, Flex-Lite1, Bi-Flex M3, Bi-Flex M7, Flex-Lite1, Bi-Fabric2, All-In 1, All-In 3, All-In 4, and All-In 6 Lights