Small dent needs mini dent lifter or pulling bridge. The principle is making glue tabs stick on the dent and use tools pulling the tabs and lift the dent. Use different size glue tabs to different dent.
PDR INOX Hold Glue Line Tabs Set – 12 Pieces | High-Strength Linear Pull Tabs
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PDR Stainless Steel Cold Glue Tabs Set – 5 Pieces High-Strength Pulling for ProF
Paintless Dent Repair Glue Puller Tabs ATLAS TITAN CRONOS OLYMPIAN (16 Tabs)
Tequila PDR Glue Tabs Variety 6 - Paintless Dent Repair - Glue Pulling Tabs