4 bolt action pens (natural brass, retro black, red bronze and nickel gray), 40 replaceable G2 refills (32 black + 4 blue + 4 red) to meet your writing needs. Natural brass material, CNC precision machining, the surface has been electroplated to maintain the original texture of the brass while increasing the strength of use. Hollow hexagonal design, integrated line cutting (balanced feel), fine toothed threaded connection, and the weight is quite balanced.In particular, it has locking and load bolt action in the design that will help you relieve stress.The key ring is easy to carry by EDC. As the amount of use increases, its surface will gradually oxidize, creating a more special retro charm. It is loved by most men and is a good for birthdays, Christmas, Father's Day and other holidays. Color: As Shown Material: Copper Package Contents: 1set x bolt action pen Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.