This automotive cold knife tool is essential for any mechanic or car enthusiast for quick and easy windshield removal! Save a ton of money. Product name: Cold knife car windshield removal tool kit Color: metalic red Material: durable metal Package content: 1 straight bar + 1 pull handle + 3 cut blades + 2 sealant scrapers How to remove windshields: (1)After removing any moldings and trim, cut away excess urethane"squeeze-out" in the channel between the glass and body with a utility knife. (2)Drop the cold knife into channel, then rotate it into the urethane below the glass, take some practice to get the right angle and strength. (3)Hold the knife bar straight, and pull cord handle close to the glass edge, navigating carefully around corners. (4)Cuts right through the window sealer and pull off your window that easy. WARM TIPS: If the band of urethane is wide, a longer cold knife blade may be necessary. Heat up the adhesive with a heat gun or soften your vehicles urethane in the sun for a bit can get the knife to even move, easy to cut the urethane like butter. How to quick change blades: To exchange the blade within seconds, you just need to push down button on the knife bar, release the old blade, insert the new blade. Well down. Warning: Please keep this tool out of the reach of Children, this is not a toy!