Our 60mm underfloor heating pipe clips fit perfectly into most taker guns. With 30 clips per run, it makes clipping you pipe into the insulation fast and effective. Our clips can also be used manually. ---Convenient magazine for use with Tacker Gun ---Pipes are fixed directly into Poly-Urathane & Polystyrene Rigid Foam Floor Insulation ---Fits Underfloor Heating Pipes up to 20mm in Diameter ---The Most Cost Effective Way of Fixing of Under Floor Heating Pipe ---Barbed Hook for Secure Pipe Fixing.