1、The principle is making glue tabs stick on the dent and use tools pulling the tabs and lift the dent 2、Big dent needs slide hammer or puller; small dent needs mini glue tabs 3、Use a slide hammer or dent lifter or any pulling tools lift the dent, try many times 4、Repair the dent avoiding damaging the original paint 5、The glue face was created for maximum adhesion to the automotive panel Description: This Paintless Dent Repair T-Bar puller is a lightweight glue tab pulling tool, meant to be used when repairing pressure dents and any dent that isn't sharp or creased. The tension puller works well with a tap down hammer when pulling large dents. It's very easy to control, everyone can removal the dent easily by yourself. Features: 1. The principle is making glue tabs stick on the dent and use tools pulling the tabs and lift the dent. 2. Big dent needs slide hammer or puller; small dent needs mini glue tabs. 3. Use a slide hammer or dent lifter or any pulling tools lift the dent, try many times. 4. Repair the dent avoiding damaging the original paint. 5. The glue face was created for maximum adhesion to the automotive panel. Specifications: Number of Pieces: 29 (1pc T-Bar + 18 pcs Blue Puller Tabs + 10pcs Red Puller Tabs) Color: Red + blue Type: Paintless Dent Repair tool set Package Weight: 182g T-Bar Size: 10 x 9.6 x 2cm / 3.94" x 3.78" x 0.79" Detailed Size: As the picture show Function: Paintless dent removal Package Included: 1 x T-Bar 18 x Blue Puller Tabs 10 x Red Puller Tabs Note: 1. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 2. If you are a new user, please take care of the first time and purchase a kit. If only buy one tool, it is not enough.