1.【TC4 titanium alloy】Made of TC4 titanium alloy with high strength, impact resistance and corrosion resistance, the appearance is ordinary but not mediocre 2.【Multi Playability】 The design of the bolt lock of the pen body and the top spinner greatly enhance the playability of the product in leisure time, give consideration to writing, thinking and decompression 3.【Pushing and pulling control pen core】the core collection is designed by pushing and pulling, which is very smooth to push and decompress writing 4.【Fixing the pen clip】 The pen clip is fixed to the pen body with screws, which is firm and not easy to loosen 5.Ideal gift pens for mom, dad, brother, sister, son, daughter, boss, schoolmate, girlfriend, boyfriend, worker, broker, teacher, clerk, lawyer, teacher, brainworker, and whoever else you care about