This medium-duty bar clamp is made from strong and durable engineering grade plastic. It is capable of evenly distributing up to 153kg of sustained clamping force. The robust I-Beam structure and C45 rail reduces unwanted bending. The TPU protective cushions safeguard the workpiece from marking and damage. One-handed operation is easy, thanks to the quick release trigger. There is also a quick change button to convert the clamp to a spreader. It is designed with long handles to enable better leverage for reaching higher pressure easily. Features & Benefits:Strong and durable engineering grade plasticRobust I-Beam structure and C45 rail to reduce unwanted bendingQuick release trigger makes one-handed operation easierTPU protective cushions to safeguard the workpiece from marking and damageQuick change button to convert the clamp to a spreaderLong handle design for better leverage and reaching higher pressure easilySpecifications:Clamp capacity: 150mmClamping force: 306kgCl