Kupo 4in Super Viser Clamp (KG602912)

Can mount securely on round or square object and just about any unique shape up to 4" (11cm) Jaw position remains fixed on one side enabling mounting in limited space Specially formulated grip pad holds tight, yet protects the surfaced it's clamped around Large load capacity of 66.1lbs (30Kg) Hexagonal receiver that works in conjunction with Convi Clamp accessories