Tzou 2Pcs Portable Jet Pen Pencil torch 503 Butane Gas Fuel Flame Lighter Refillable pencil jet torch. Material: Metal & ABS. 1300 flame adjusts for use. Dimension: 165 x 23 x 18 mm(L x W x H). Capacity: 3.5g Pressure inside : 0.350.05 MPA. Continuous burning time: No more than 8 minutes. Enjoy wonderful shopping experience at Bubble Star. Note: Come without lighter gas because of customs problem. Lighter gas required when you use it.