Product Specifications Manufacturer: KTC (Kyoto Tool Co.) Inner Diameter (mm): 74 Outer Diameter (Φmm): 82 Shape: 14-sided Weight (g): 90 Ratchet Size: 9.5mm square drive Product Description: For removing and installing cartridge-type oil filters. Used twice. There are some scratches (see image 4), but there are no problems with use. I used it on a Benz (W210). If you have any questions, please contact me. No box included.