1. High quality aluminum alloy material, hard, durable, corrosion resistance, long service life.2. Bluetooth Connectivity3. Up to 4096 levels of pressure sensitivity4. With pen pressure sensing, draw straight lines and miniature letters with precision and accuracy.5. Small size, light weight, easy to carry, can bring you more , better meet your needs.Anti-Accident ClicksConfigurable ButtonBattery - Alkaline 1pc2000 Hours Battery Life Requirements:Windows 8,Compatible with the following models:FLEX 4-1130-MT 80U3;for IdeaPad Flex 5 14IIL05-MT 81WSfor IdeaPad Flex 5 14IIL05-MT 81X1for IdeaPad Flex 5 15IIL05-MT 81X3for IdeaPad Flex 5-14ARE-05-MT 81X2for IdeaPad FLEX-14API-MT 81SS;for IdeaPad FLEX-14IWL-MT 81SQFLEX-15IWL-MT 81SRFLEX 5-1470-MT 80XAFLEX 5-1470-MT 81C9FLEX 5-1570-MT 80XBFLEX 5-1570-MT 81CAFLEX 6-14ARR-MT 81HAFLEX 6-14IKB-MT 81EMfor 300e-MT 81FY;for FLEX 6-11IGM-MT 81A7;for IdeaPad C340-14API-MT 81N6C340-14IWL-MT 81N4C340-15IWL-MT 81N5C340-14IML-MT 81TKC340-14IWL-MT 81RLC340-15IIL-MT 81XJC340-15IML-MT 81TLD330-10IGM-MT 81MD;P1 2nd Generation-20QT MTP1 2nd Generation-20QU MT P1-20MD MT P1-20ME MT;P40 Yoga-20GQ MT P40 Yoga-20GR MT P50-20EN MTP50-20EQ MTP51-20HH MTP51-20HJ MTP52-20M9 MTP52-20MA MTP53-20QN MTP53-20QQ MTP70-20ER MTP70-20ES MT;for Lenvo Yoga 14-20FY MT;for MIIX 325-10ICR-MT 81B9510-12IKB-MT 80XE520-12IKB-20M3 MTColour:space grayMaterial:MetalPackage Contents:1 x Bluetooth stylus PenOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.