Thank you for viewing. This is a set of 4 combination wrenches made by KTC (Kyoto Tool Co.) in sizes 10/12/14/17mm. 10mm (No. MS2-10-F) 12mm (No. MS2-12-F) 14mm (No. MS2-14-F) 17mm (No. MS2-17-F) These are unused items after delivery, but please understand that there may be minor scratches from storage. 【Product Description (quoted from the official website)】 ・The box end opening is designed to prevent stress concentration, making it less likely to damage the edges of bolts and nuts, and employing a power fit shape for more secure tightening and loosening operations (excluding sizes 5mm and under). ・The open end head has a minimized width and a volume at the point of force application, representing KTC's unique head design, an evolution of the traditional shape. ・The handle has a recess in the center, making it strong against bending and also lightweight. ・The size markings are large and easy-to-read, using a forged embossed stamp.