Industrial and Scientific Tool offers this efficient 4 pack toggle release with 360lbs capacity. Based on our experience this durable workholding device is an excellent addition to our industrial power tools kit for its secure and flexible clamping... The handles are easy to operate and release, while the larger clamps are perfect for bigger jobs. The only cons we've found is that the smaller size clamps can be too weak for heavy-duty tasks. Overall, this is an effective and reliable tool with good value for money..