The TRIAC ST Roofing kit from Leister is the ideal tool set for both beginners and professionals for overlap welding of plastics and thermoplastic membranes. It contains Leister’s popular TRIAC ST heat gun, a 20 mm wide slot nozzle (Art. No. 107.123), a 28 mm wide pressure roller (Art. No. 140.161), a 6 mm wide pressure roller (Art. No. 106.972), a pair of Utility scissors (Art. No. 157.544), a seam weld tester (Art. No. 174.048), and a replacement heating element (Art. No. 142.717).