xiaomi mijia aluminum rollerball pen refill https://www.tokopedia.com/zekate/xiaomi-mijia-aluminum-rollerball-pen-refill Main Features: Switzerland imported refill: smooth writing and smear-proof, retractable and refillable 0.5mm fine point draws razor-sharp, consistent lines Handy retractable and rotatable design, convenient to use All-metal precision connection parts, 50,000 times rotation life test Specification General Brand: Xiaomi Pen Type: Multi Function Pen Pen Lead Diameter: 0.5mm Dimension and Weight Product weight: 0.0200 kg Package weight: 0.0700 kg Product size (L x W x H): 14.00 x 0.95 x 0.95 cm / 5.51 x 0.37 x 0.37 inches Package size (L x W x H): 16.00 x 3.00 x 2.00 cm / 6.3 x 1.18 x 0.79 inches Package Contents Package Contents: 1 x Original Xiaomi Sign Pen