Suitable for most (but not all) impulse sealing machines marked as "12-inch" or with "300" in the model number. Please verify your machine size matches the product dimensions before purchase.<br> Heating elements are made of nickel chromium, offering high resistivity, low resistance temperature coefficient, high-temperature performance, good corrosion resistance, fast heating, durability, and resistance to breakage.<br> Easy to install using a screwdriver on most machines. Replace old elements to improve bag sealing performance. Replace the kit when the PTFE cloth shows signs of wear, discoloration, or reduced sealing effectiveness.<br> Ensure correct size compatibility before purchasing.<br> Actual product may vary slightly in color due to lighting and display differences; this does not affect functionality.<br> Color: As shown in photo<br> Material: Nickel chromium<br> Size: Approximately 34 cm<br> Package Contents:<br> 10 x Impulse sealer heating elements<br> 10 x Cloth tapes<br> Note: Light reflection and different displays may cause slight color variations. Measurement tolerance is +/- 1-3 cm.