Product Size The Wrench Kit Is Designed with Heilwiy 3 Different Attachments. Large Key: Range H23-32 Mm. total Length 28Cm Small Cl: Applicable Range 9-22Mm/6-15Mm. total Length 21Cm. Practical Design Universal Wrench Fits A Variety of Nuts And Bolts. And The Fine Teeth Can Firmly Fix Water Pipes Or Round Screws. Squares. Diamond-Shaped 6-32 Mm. High Quality The Spanner for Heilwiy Nuts Is Made of High Quality Steel. Fully Hardened High Frequency. Chromium. High Hardness. Good Tenacity. High torque Mechanical tooth Point. Strong Bite force. Strong And Durable. Saves Time And Efforttwo Universal Keys. Fits All Kinds of Screws And Nuts. No More Boring Searches Just Use An Open End Wrench And The Rest Can Be Adjusted By Yourself. Wide Range of Applicationsthis Kit Is Very Suitable for Heilwiy Repairing Or Replacing Accessories. Valves. Pipes And Water Pipes. Boiler Radiators. Car Wheels. Air Conditioning Systems. Etc In The House Or The Kitchen Or The Bathroom.