Further, the stand is made by aluminum alloy with tactile silicone on the bottom for anti-slip stability and durability. You can also avail 24 hours customer service in case of any quality issues. How to Use & Power-Saving Mode】No Bluetooth connection, press the power button to start using with the indicator turn blue. The indicator will be red when charging and turn green when fully charged. The flashing blue light is in a low battery state, please use the charging cable equipped with Ciscle to charge. (Notice: Using Apple's charging cable and plug will cause charging failure.) The stylus will enter a Power-Saving sleep mode after five minutes of non-using to save battery power. Palm Rejection & Magnetic Attach】The pencil for iPad supports palm rejection function allowing you to rest your hand on the screen without causing unwanted strokes. Will attach magnetically to iPad Pro 11'', 12.9'' (3rd/4th/5th Gen), iPad mini 6, and iPad Air 4th.