Monkey wrenches, large, medium, and small, are offered as a set of 3. All items are used, so there may be some dirt and rust. Please check the images and consider purchasing if you are okay with this. The jaw opening and closing mechanisms are smooth on all wrenches. • Individual product details are as follows: Length Jaw Opening Width Brand Large 255mm 30mm SK11 (Fujiwara Sangyo) Medium 200mm 26mm No Brand Small 156mm 20mm No Brand (With scale) Thank you for your consideration. Thank you very much.