The package contains:1* wrench 1. Only 2.3 ounces, just over 2 inches in diameter. 2. Stainless steel multi-function tools include different sizes of wrenches, etc. 3. You can also use it to open the beer bottle, tighten the screws, fix the skis and bicycles, open the carton, etc. 4. Snowflake multi-function tool is made of high quality stainless steel, exquisite workmanship, sturdy and durable. 5. Special snowflake design. It can be easily attached to a backpack.