Lightweight plastic vise with stainless steel threaded shaft for advancing jaw wont rust. For projects that require the use of water such as drilling, sanding or shaping shell or stone.41?4″ long x 31?8″ wide x 13?4″ high.Jaw width- 13?4″. Jaw height- 3/4″.Jaw capacity- 15?8″.Mounting holes 15/64″ dia.for #12 screws.