Classy material: the heating elements is made of Nickel chromium, features with high resistivity, low resistance temperature coefficient, high temperature of use, good corrosion resistance against high temperature, fast heating, durability and not easy to break_x000D_ Easy to operate: require just a screwdriver for installation on most machines, try to change the old elements to have a better bag sealing function in daily use, replace the kit when the PTFE (cloth) is warning, changing color, or the seal effect is not good_x000D_ Appropriate size for you to use, please check the size carefully before purchase_x000D_ Applicable situations: suitable for most machines with the number 400 as part of their model number, for example, compatible with F-400, FS-400, PFS-400_x000D_ _x000D_ Type: 400 Type_x000D_ Colour: Silver_x000D_ Material: Nickel chromium_x000D_ Size: 455 x 2mm_x000D_ _x000D_ Package Contents:_x000D_ 10 x impulse sealer heating elements_x000D_ 10 x corresponding cloth tapes_x000D_ _x000D_ Only the above package content, other products are not included._x000D_ Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_