Flat element sealer with cutting blade creates super strong, tamper-evident seals. Just press down armature to seal, then slide the built-in cutting blade to trim. Blade cuts within 1/4" of seal and a short tail flap remains. Seals polypropylene and polyethylene bags and tubing up to 6 mil thick. Not recommended for sealing material thicker than 6 mil. No warm-up required. 12" seal width. Service kit sold separately.