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.