Flexzion 12" (300mm) Impulse Sealer - Manual Plastic Poly Bag Heat Sealing Machine Closer Kit w/Adjustable Timer, Portable with Free Replacement Element Grip and Teflon Tape No warm-up needed, can be used right away; Portable and compact size. 12" long sealing element Auto LED shut-off indicator light. Anti-rust aluminum case Perfect Seal for Bags with Varied Thickness: The adjustable timer switch allows more accurate control over the sealing process Durable and robust handle resists heat and electricity; Heat Time: 3.5 Sec Versatile Sealing Capability: Ideal for sealing plastics bags, polythene, bubble wrap etc