Can the Flex mount be attached to a table, bed, or wheelchair? April 01, 2022 12:45 Updated Yes, the clamp allows mounting to flat or round (tubular) surfaces up to 2” in size. Related articles How much weight can the Flex mount hold? Getting Started with Cling Getting Started with Flex Getting Started With Friction Knob UMS with Super Clamp How do I install the locking knob on the Universal Mounting Plate?