Hualian Carbon Brush For Dremel 90827 Rotary Multi Tool 270 280 370 380 10 Pieces Replaces Dremel Rotary Tool Size: 4.8x4.8x8.2mm, 0.19inchx0.19inchx0.32inch Material: Electro Graphite Quantity: 5 Pair (10Pcs) Can Supply OEM