1. Only 2.3 ounces, just over 2 inches in diameter. | 2. Hexagon screwdrivers of different sizes, different sizes of wrenches, slotted screwdrivers, Phillips screwdrivers of different sizes, 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 keychain or backpack.