Describe Colors:black,brown Shelf life: Features: 1. One-touch stamp pen, easy to stamp quickly with one click, efficient and convenient, especially suitable for office scenes that require frequent stamping. 2. Using high-quality ink technology, the imprint is clear and lasting, does not fade or smudge, ensuring that every document can get a professional-grade stamp effect. 3. Ergonomic design, comfortable grip, no fatigue after long-term use, with a lightweight and portable body, to meet your stamping needs anytime, anywhere. 4. The replaceable ink core design reduces the cost of use, extends the product life, is environmentally friendly and economical, and is an ideal choice for individuals and enterprises. 5. Compatible with a variety of paper types, whether it is ordinary printing paper or special materials, it can present perfect results and has a wide range of applications. Comment: 1. Manual measurement tolerance is 2-5g. Please don't mind your substitution. 2. Due to differences between different monitors, the image may not reflect the actual color of the item. Thank you so much! 3. SKU color is the color of product packaging Package includes:One-touch stamp pen*1pcs